hey
first of all, glad you posted - awareness and understanding certainly helps and is the best thing around really, honest questions invite honest answers, hope you get lots of constructive input
we got some stuff in our library that you might wanna check out, particularly:
why do women stay - attempts to answer your question, cuz its a common thing
safety planning for battered women - not relevant to your gf anymore since she already left, but could give an idea of what exactly leaving a dv relationship involves on practice
stockholm syndrome - talks of how emotional connection with a perpetrator of abuse works, which affects ones ability to leave even if the practicalities are taken care of
tips for secondary survivors - just a good page on what survivors generally want from their friends/relatives/significant others
i totally hear how it makes little sense, that one would stay in an abusive situation instead of just leaving. thing is - you cant leave. its what makes it abuse. if one was free to go (or to fight back), it would be called "dating a jerk" instead. happens, is deeply unpleasant, but has little to do with abuse imho. abuse is when you cant leave. its a trap. that the perp creates and maintains, consciously or not. usually consciously. its not visible to outsiders, but its very much there, and its what keeps the victim in the relationship.
what the perp might trap you with is up to their creativity really. can be blackmail. can be threats to kill/harm kids, parents, siblings, friends, etc. pets. could be taking control of finances, so you literally have no money to leave with - and i dont mean half of the savings, i mean $10 for gas. pardon tmi - when i was preparing to leave mine, i hid cash rolled up in one of my tampons, sealed the wrapper with an iron, cuz sealed tampons was the only place he didnt search regularly. could be threats to ruin your career (send nude pics to employer or something). could be just threats to kill you if you try - to an outsider it might sound like just words, empty threat - but its actually quite likely for a dv perp to attempt to murder the victim who is trying to leave. for tons of reasons, but one of them is - battery is a felony, if she talks he'd be looking at a lengthy prison sentence, and shes likely to talk cuz she gets more social security benefits as a dv victim, and she desperately needs them if she ran off and is homeless/unemployed/etc. if he had no problem committing felonies before (beating her up on regular basis), whats to stop him from killing her out of self-preservation, to not go to prison for dv; clearly the guy has anger issues and no reserve about violence...
also, all of the above applies only once you at least realize that whats happening isnt right and you need to leave. abuse involves lotsa brainwashing. i mean, she was in love with the guy at some point, picked him voluntarily, stayed with him happily for a while - and not like when he started to beat her up he just said "alrighty now, honeymoon is over, now im gonna be beating you up, just suck up and deal with it, tough luck". of course he snows her with all sorts of rationalizations: that it was a one-time thing, he had a hard day at work and snapped, she provoked him, she shouldnt have done this and that, he'll never do it again, she'll be more careful next time, etc. i mean, its the person she loves saying this. makes you doubt your perception - maybe i really was wrong and provoked him somehow, he never does this to anyone else, i must be a horrible person if thats how he treats me, etc, etc, etc.
how soon one leaves also depends largely on their support network - how many people they talk to about whats going on. if there is at least one such person. and how does that person respond. first time i gathered the guts to tell someone whats going on, the person i spoke to responded that yeah, shes sorry for me, and worries about my safety, but to her it doesnt look like anything can be done here, looks like im stuck with this for life lol. i mean, its gonna sound ridiculous - but that was the only input i had on my situation, so i accepted this answer and stayed for a coupla years more. im pretty sure if she emphatically told me this wasnt ok and i should call police - i woulda done it, and woulda been out of the relationship a coupla years earlier. and its not cuz im so dumb - its that abuse is a deeply private and painful secret while its happening, talking of it is excruciatingly hard, so i did it once (been preparing for that talk for a few months tbh), got my answer, and shut down again.
for you and your gf