I’m going to take a risk here and point out a pattern:

Step one: Break up with an SO
Step two: Become EXTREMELY defensive and hostile
Step three: Hook up with whoever around you pushes through the defense
step four: Fling yourself deeply into this relationship; define your identity through it.
Step five: Be shocked when that person turns out to be a jerk
Step six: go back to step one

Date gamely. Date like a gambler. Bet what you can lose, and win and lose “like a man.” (whatever your gender) Don’t go bridge-torching ape-shit when things end. Be grateful you weren’t stuck with the wrong person for a longer time. Don’t blame the next person for the last person. The wheel has no memory,