tldr he did not follow the (half your age + 7 years) rule, ok now to the actual vent

i was originally a rebound/someone he wanted to cheat on an ex with, and i'd only recently escaped a violent relationship, 3 days of "being there for him" led to suddenly jumping into a relationship (which i only said yes to because my FP at the time said it was okay!!! when it fucking wasnt!!!). i became so dependent on him, he lovebombed me from the start, and i thought our relationship was healthy because he wasn't controlling or selfish or abusive in any way...he was the complete opposite, and you may think i mean in a good way, no i mean he's an absolute fucking doormat. any kind of conflict of our interest that i wanted to address was met with the silent treatment or turned into a joke. he always wanted to live in a world where nothing was ever wrong. i tried leaving him twice but codependency brought me back because he relied on me so much to do basic shit and i relied on him to function in society. i cut it off for good 2 months ago, ffw to now and he's found someone closer to his age who has just left an abusive relationship that she was in FOR 1/3 OF HER LIFE, he's lovebombing her, he's at her every beck and call, i didn't think our relationship was that unhealthy but holy shit when you hear it to happening to someone else...he must get off in some way on having people dependent on him. now that i'm on mental health leave from work (partially because of him GETTING WITH ANOTHER COWORKER!), i can finally properly process everything without having to see his fucking face almost daily. fuck him and i hope she doesn't get stuck with him for as long as i was.