Is it to late?

Sorry in advance for the novel. It got alot longer than I thought it would.

My fiance, after 9 years of being together, left me yesterday night. I was completely in the wrong, and I'm trying to save the relationship. I fell into a bad routine after being with her so long. I took her for granted. I'm an electrician, so I perform hard manual labor all week, overtime most weeks. and on the weekends, put my skills to work fixing up the house. My problem arises when I was too tired to formulate a thought at the end of the day, let alone plan a date, or anything at all. I just collapse into a vegetative state on the couch every day. It wasn't fair to her, but at the same time I was working so hard to try and build a future for the 2 of us. Work + Flip the house we were in on the weekend, then sell it to upgrade into a better place. I began to have problems managing my time, aka every time she asked me to go hang out with her parents, for example, I'd throw a fit because it stopped me from either working, or spending what little time I had to relax, being active. It got to the point I neglected to hug or cuddle her, I just didn't think about it. Not that I didn't want to, I just never thought about it. Our new puppy didn't help either being that it lays in-between us on the couch. Being a habitual person, that extrapolated itself to incorporate all sorts of other small things, until she finally gave up. I don't know what to do. I also grew negative due to the excess of work. When I was "relaxing", I always felt guilty because I could be using that time to do something to improve the house and our quality of life. Catch 22. She also said I managed to make her feel guilty for everything she did. I truly did not mean to do that, and did not realize I was doing it, until she spelled out it for me yesterday. Adhd/add has caused me to have social issues my entire life, and I'm not very capable of picking up on subliminal messages or hints. I have alot of problems with the things I say, because there isn't any thought to it, the words just come out, whether they're complaining about her favorite TV shows (which goes back to my miniscule amount of relaxation time; I didn't want to watch Gilmore girls for the hour of down time I got a day) or for some stupid reason, the food she eats. She stopped watching certain shows and eating certain foods because of my complaining. I have a feeling it's to late, but I'm trying my best to make amends. I'm sorry again for the novel.