Am i a red flag, am i the problem?

Background: 21 Female, last year of university
Been single for 4 years almost and never had a long term relationship.
Basically i lost my friendship group last year because i got into a disgreement with my flatmate which escalated itself despite me trying to resolve it, and got into the group. it never resolved itself, got blown out of proportion and i have since completely left the group because i was starting to feel very unhappy around them.
I basically have no friends now, im considering going on bumble friends to find some and join some clubs to find some. i dont expect to find besties for resties in the last few months of uni but i do miss socialising eventhough i am an introvert.
Looking back at what happened, i do feel i deffo couldve handled things differently but i feel backstabbed by my friends who just ignored it and swept it under the rug, leaving me to deal with someone who had no intentions of resolving it with me, just wanted to create drama.

I have no friends now, and im worried boys will see me as a red flag as i fell out with those people which wasnt entirely my fault, although i do accept some responsibility for it. Am i a red flag for other people i want to make friends with as well?

Why would you be describing this past situation to people in the future? Just don't talk about it. Move on.