imma just put what i answered in the comments TvT:
nope- nothing is wrong with u. Im going through the same thing and I keep getting cheated on when I do nothing. Maybe its just them and the people your dating id.k- but I know is upsetting when u keep getting cheated on. Trust me tho, you'll find the right one because i have- hopefully anyways- but you'll get through it and if u need to talk im here.