Avoidant Attachment - Does friendships/relationships make you overwhelmed?

I ended up deactivated my account on "Discourse" and plan to possibly do the same on "Cora". I just am not capable of being social anymore...I feel bad, because I do actually have online friends on Cora...But not on Discourse-- was backstabbed by someone I thought was a friend, who then turnt out VERY toxic and gaslighted me too. She assumed that because I was not fond of a certain online influencer, then I must also NOT like her or think she is also "dumb" for liking them (I never said that, nor did I EVER imply anyone who likes said influencer is dumb. I just said I don't trust said influencer based on them flip-flopping their views and didn't find them trustworthy. Never said anything about "stupid" or "dumb". This "friend" was putting words in my mouth and getting EXTREMELY aggressive. I was fond of this person, until they became extremely rude, and I decided to leave the server and not deal with her. She targeted me specifically, despite others who had similar views as myself, but only replied to my messages and ignored theirs, which was...odd).

Anyhow, I think I'm good on not using that app. I have IRL "friends" on there but...I don't talk to them, as they only hit me up to flirt, and I am not interested (especially since I am in a relationship and idk if they are true "friends" if they only see me as a piece of meat...). I do have one real friend on there, but I have his number and I also have my partner's number, so the app "Discourse" is unnecessary. Just tired of dealing with weirdly aggressive people on that app.

Apart from that, I do have accounts on pen pal/language exchange types of websites/applications, but I plan on deactivating and deleting them as well(the ones I do not use)... I don't like having my digital footprint everywhere.. I have had an account on social media hacked a decade or so ago, and I just want to play it safe by deleting or deactivating what I don't use and possibly making the passwords more complicated than it already is. (I have an interest in cybersecurity, so I prefer to keep my data as private and secure as possible). 

I'm going to mostly stick to 7cups, and maybe one other language exchange/pen pal type of website -- since it is my hobby. I just feel bad, as whenever things are chaotic in my life, I disappear...and recently, I disappeared again on some friends on "Cora"...It makes me feel awful that I do that often. That's something I need to work on. I have an Avoidant Attachment style caused by PTSD, however, I do NOT want this to affect or hurt other people in my life... I have told my partner that due things going on in my life(ex. trying to complete online classes for real estate license and get a job ASAP so I don't move into abusive mother's home and can get my own place again), that I may not be communicating as much, but I relapsed and talk to my partner all day instead of prioritizing certain goals as I feel lonely here in this city... I have a lot of trauma surrounding this city and agoraphobia developed from it as well. When I move(which will be by the end of next month), I will look into therapy and (slowly) try to make friends IRL again and take it easy this time. I will also explain my odd behaviours (ex. "Sometimes, when I am going through tough times, I tend to shut everyone out. However, I will communicate with you when that happens and how much time I will need alone (ex. XYZ amount of weeks of a social break)" -- I have done this before with my current partner and the ghosting partner I had prior...As well as that former friend who drinks under the influence -- I let people VERY close to me know about my habits, as to not hurt them...)