Is there something wrong with me ?/ What am i doing wrong.

so i will start off with some basic information. im 24 and im from the uk.i came out when i was 19, most people reacted with surprise but accepted it. in the last 5 years i have only had 2 relationships both did not last long due to 1 being married (which i did not know) lasted 2/3 months but i ended it when i found out he was married. and the other one was extremely clingy and just didn't trust me from what i gather of him following me around. that one lasted 4 months. so now i am 24 and i haven't had a relationship in a few years i have been actively looking for a relationship for the last few years as well, i use 3 different dating apps and only being interested in long-term relationships norrows that down a bit, i also go out around once or twice a month, i would class myself as being average looking, because i talk to alot of guys and they are only intrested in nsa/one nighters. is there something wrong with me wanting an actual relationship ?if anyone has any questions just ask. any help would be great.sorry for the rambling