My girlfriend that still loves me thinks she’s a lesbian

So..... I’ve been seeing the perfect girl for just over 2 years. We don’t argue, we always have fun together, sex is great, pretty much all aspects of the relationship were on track for success. She’s text me a few weeks ago and said she wants to talk. She goes on to say that I have lacked on the commitment side of the relationship and now doesn’t see it going anywhere. To explain this part I live around an hours drive away I make the journey every single weekend and have done pretty much for the duration of our relationship which I don’t mind at all she did ask me about 6months ago to move in and due to my job and previous relationship commitments like my daughter and a house I’m renovating to sell it’s been a long process of accepting the move in offer (which I was planning on doing in the next few weeks 🤦‍♂️) So after a weekend apart and her ghosting me I couldn’t take it anymore and text her asking for the truth of what’s going on you don’t just switch off what we had something was up She text me...... I THINK IM LESBIAN My response.... OK WE CAN WORK THROUGH THIS TOGETHER. I LOVE YOU So as the days went by she starts to explain that she’s met someone online and they had been talking and talking and talking and FaceTiming and she’s basically explaining to me how we met and how I felt when we met. My heart is breaking but she’s so excited about this new thing it’s hard for me to try and knock it down for her. So say about a week or two after this news the weekend is coming up I’m having trouble with contact with my daughter due to COVID and a disgruntled ex-wife it’s supposed to be the second time I see her in over a year and she didn’t show up and I was left a note saying she’s tired and wants to see me next week instead (so not only is my relationship falling apart my daughter doesn’t want to see me either as you can imagine I’m hurting from all angles and all I want to do is call my girlfriend so I did She invited me to come down for the weekend take my mind off my daughter have a few drinks and just be friends (that still love each other) so i drive to her house get some drinks and we chat for hours share some hugs and kisses and the situation seems to get hold of her and she all of a sudden wants me in bed now at first I resisted this but as the night drew longer my ability to say no wore thinner and by the time we got out of our matching pyjamas and into bed her hands were no longer being blocked by garments. Continuing to have amazing sex (twice) then falling asleep in each other’s arms. Waking next to me the next day continued her want for me and we proceeded to make love a further time. Spending a perfect family afternoon together with Sunday lunch at her parents house and another night of sleeping close holding each other tight. I then had to go back to mine for work commitments. So I left at 5am to the words I only want to hear from her “I love you” it literally was the perfect family weekend. So now I’m thinking to myself she really loves me and she needs to decide what she wants so we FaceTime that evening and I ask her. I ask her to decide, I say not straight away but give it a few weeks. So as the days are going by I notice her conversation with me going a bit stale, she’s staying up extremely late talking with her girl-friend, (like 4/5am), she starts to neglect her son a little, her eating habbits are changing, she’s wearing a lot more makeup etc posting online a lot more she’s told the other person to block me online so we can’t communicate. So through this week I’m getting a little frustrated by the actions and words not matching up so I ask her what’s going on, she basically says that she has to see this feeling out and if she loses me in the process it’s something that she will have to deal with. Which I didn’t take very well. The next weekend comes around we’ve not talked for day or so properly. So at 00:05am Sunday morning I get a drunk text “I’m so sorry this situation is so messed up” so I respond and we chat for a few texts then I say I’m going to sleep I’ll talk to you tomorrow. At 06:00am I get a FaceTime call she has been up all night at a friends house and doesn’t know what to do. she has to pick up her son and she can’t drive now obviously. So I tell her I’ll come down pick up her son (as I would anyway) let her get some rest etc... so she wants to stay on the phone so basically it takes me an hour and 45mins total to get to her, (getting her breakfast on the way too) so I pick her up take her to her house she wants to get into bed and have a cuddle before I get her son. Ok we can do that. Before long it it turns sexual but it doesn’t end up being fully sexual just some shall we say passionate kissing and touching. We anyway that gets stopped and I go and pick her son up from her parents house on my own leaving her in bed. I return with dinner for us all and sort her son out so he’s happy playing his computer game. Back to giving her a cuddle it starts to get sexual again so I suggest we go cuddle on the sofa and watch a film that way it’s much less likely to become sexual and I can just relax a bit so we have a shower etc get on some comfy cloths and go to the sofa. Cuddles commence with a film. I ordered us takeout from our favourite place like we always did on a Sunday evening I get her son all showered and clean ready for the week ahead we have food, her son goes to bed. The cuddles ems on the sofa were back in bed and it’s time to make love again so it happens and it’s not amazing for me. I can feel a little bit of disconnection. so afterwards I explain to her that she needs to chose what she wants and if she doesn’t I’m going to have to put the breaks on and stop everything because I can’t be her friend and watch her run away with someone else. It’s hard to love someone so much that you’d be happy to see them happy even if that makes you sad in the present. So she turns around and tells me she’s gay again and tells me she still loves me but has to explore this feeling she has. So I say we can’t be friends then if that’s how you feel then that’s what you need to do. I say not to text or call because I won’t reply. The next day I wake up for work 5am leave to the words “I love you” but this time I respond with “I love you goodbye I’ll leave your front door key on the table” and I left for the last time. She text me 2 hours later “did you get home ok?” I didn’t reply she text me 2 hours after that “no need to be rude” I didn’t reply straight away then I thought to myself all I want to do is talk to her it’s killing me not too, so I say “please don’t make this harder than it already is. I still love you and this is not what I want” this was around 11am So she then doesn’t reply until 5:30pm saying I don’t know if I should text you or not..... etc... it’s like I’m on a shoe string because I don’t want to stop her talking with me but she’s not saying what I want her to say Now I’m sat here writing this and she’s just messaged again saying the same thing as when we started basically I’m perfect and everything she’s ever wanted but she just needs to explore this feeling with this person online and she thinks I’m now too damaged to fix because of what she’s done. I think she would benefit from talking to a professional but I doubt she would even entertain doing that even if I booked it for her. Its now 2am and I can’t sleep anyway so... here’s my story internet. Please tell me something I can do apart from run away 🤦‍♂️