My girfriends depression

Hi, my name is Gary, and for a year and a half, I have been going out with, my girlfriend, who is depressed, she had one of her brothers a couple of years back, commit suicide.  So, while in our relationship, she only told me she was taking antidepressants(sertaline), about 8 months later, and we started dating in May (2008), and two months later she told me she just broke up with her ex, who they still, had a house together.  So, she ask me to move in with her, after 3 months, but she was not finish with him, his things were still in the house, she left him cause he was always beating her up, so all summer long she had too get two lawyers, one for her ex, and to take over the house, and the other for her ex husband, who wasn t paying alimony anymore, for her 3 children, so she had all of this stress, and plus a few arguements with me, which I told her, that it is too soon, for us too be, together, you are not finish with your ex-boyfriend, so once he got his things out in september, and everything was arrange with her ex-husband, she spent 4000$ for both lawyers.  So, from there on I saw her depressiveness grow on her, and around just before xmas, she took a week, and went to florida, too rest, and get away from it all, but didn t rest at all there.  After xmas, she changed jobs, worked for the gouvernment, but didn t like the job, or the boss, she was up and down, we didn t go see any friends, went to the restaurant, but never go out to dance, or when I went back to my home town to see friends, she always took fits, think I was going to sleep with my ex  's, or look at another women, and she always felt not beautiful or love herself, and our sex life not very strong, so just before spring, she try to go back to her old job, but was occupied so went back to the same building, but different department, still for the gouvernment, more happier, then I moved in with her, on June 1st,2009, and still up and down, I love her deeply and I tell her, but she thinks, I don t love her, cause I didn t smile much, and told her, its just when, you take your actions, on me and accusations, or say that I am trying to take your dog away from you, and say look, even my dog doesn t love me.  So, more stress came for her, she can t afford her house, too many debts with credit cards, she spends alot for no reason at all, and her children gave her alot of problems, and one of her daughters now just turn 17, went to rehab, and got caught for saleing drugs, and during the period I was with my girlfriend, she was also, taking pain killers for her back, two rupture hernial discs, and she was very active women, before her injury, and that was another facture, she gets depressed, so with her medications, and had allergies, she started to drink about everyday, wine and beer, gain weight, and stop taking pain killers, and smoking dope to relieve the pain, and about 3 weeks ago, she suddenly turned 360 after reading a book, about low self esteem, she went out to a bar, phoning everyone except me, and I caught her kissing and touching another man, went up to her, and she told me he makes me feel like a princess, when I see, him, so later on, I ask her if she wanted too sleep with him, she said no, but didn t come home that nite, she didn t want to get into an arguement, it hurt me saying she didn t have any respect for me, but she said we are separated, but still living in her home, and sleeping beside her, she said don t give me the guilt trip or accusations, I feel bad about it, and said the only real man that I ever kissed or make love that was really good, was you, but there is a doubt in my head why would she do that, is it because of her stopping taking her medications, cold turkey, I notice she had all of the symptoms, they talk about on the internet.  So, she wrote me a letter saying she still loves me, and ask me, too give her time and space, to find herself, she can't go on living like this, and once she does solve her problem and recuperate from her other break up, hopefully, I will still be there, saying I am a good guy, and still wants to do things with me.  But, so I decided, around the 16 of August, to leave, but couldn t get back into my house right away, staying at other peoples place, move most of my things out, but still had things left in her house, but during the first week, I wouldn t stop texting her or emailing telling her how I feel, and that I love her, and she was irritated with her children, and my son, thought my son was a killer, she was all of a sudden afraid of him, and she was getting on everybody ones case, and said she doesn t love me anymore, cause she said, that I am putting all of her friends against her, cause of an insitence at a pub, where I left and she stayed, and text me saying yeah you really love me, you want me to commit suicide, I don t want to see you anymore, and so on up until now, for the past two weeks I don t text or email.  So, very mixed up, is it a reaction cause she stopped everything, or am I just stupid to wait for a miracle.  Help me