Hey
mcjoness I'm really glad you've decided to reach out for help... .not an easy thing to do for anyone... let alone for self sufficient 'care giver' types... .
Wow it sounds like you have really been through the mill with this person!... .how is this affecting your own studies/work?... .
If you'd contributed initially on the newbies board I'm certain your post would have been addressed by a welcoming ambassador... .for now it sounds like the 'undecided' board is certainly where your head is at (although the 'staying' board as it used to be called, will certainly be useful for you also... .
It's important to use this place as much as you need. Many here have trodden your path (I ended up with a great therapist as a result of meeting my partner... .as have you)... .
The staying board will help to get a realistic perspective on what her "getting better" practically looks like for her... .and more importantly if that is what you want your future to look like.
"Run away" isn't a particularly helpful response (although I understand the sentiment of those who suggest it)... .us behaving this way without careful consideration of the how or why can often exacerbate their worst behavioural responses.
A lack of self esteem, self respect caused by a so-so upbringing is a very relevant cause of depressive symptoms... .it's important you don't diminish this or explain it away. These traits are rather appealing to individuals with 'control' as an agenda.
I look forward to seeing more posts from you... .

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Considering trust is already an issue after her recent behaviour... .do you have concerns for the long distance aspect of things?... .Has she suggested a timescale for how much time she needs to 'get better'?... .How much contact are you both having now?... .Is this cool with you?... .