I agree as well OP.
my relationship out of university was with a wonderful man - adored by all because he was so fun. But took me a while to click he was actually an alcoholic and when he'd got past the life and soul of the party bit, came home and was a nasty drunk, broke things, scared me, risked his job, police, casual drug use started, scuffles with his dad at 3 in the morning
he was a lovely man when not drunk but as the drinking got worse the more his personality changed, the party friends started to see he took it too far, it tumbled over into his working life so his job on a knife edge, the shouting and throwing at me turned into pushing and grabbing
i got pregnant - he was going to change - stopped drinking immediately, happy families, i was overjoyed - his acting out as a young man phase over, he was going to be a grown up. Then he came home plastered smashed up my flat, nicked my car to drive to a friends and I couldn't get keys off him so he threw me across the room. He drove my car into a tree and fled the scene, police visited me.
The most awful thing i've ever done was terminate the pregnancy after that. Left him shortly afterwards. He went through a load of other women over the next 20 years all trying to save him. some had kids with him, he became ostracised from family and long term friends, couldn't hold a job down and eventually took his own life 3 years ago, alone and in a gritty flat. Im glad i don't have to support a child with that
i feel desperately sorry for the children