I need serious help.This is not a joke?

[Yutgvtgj]

I am seriously considering suicide.I made this account to post this.I was with a girl for 8 months.The first 2 months,I treated her right.I was good to her.I found out that she was cheating on me through texting and internet sex.She is a habitual lier too.I got sick of it one day and broke up with her.I thought that was the end of it.I got home and she started calling me begging me for a chance.After a while,I gave it to her.The next 4 months,she didn't cheat.But I kept finding old messages and profiles from where she cheated.It would upset me seeing more evidence everyday.I could not trust her at all.I had my guard up 24/7.We started arguing everyday.We started calling eachother names,and it got so bad that I just hung up one day and ignored her.I called her an hour later and she told me she was talking to a guy.So I ended it again.She kept messing with my head and blamed me for everything.We ended up getting back together but it wasn't the same.She treated me like an animal.Ignored me all day.If she did answer,she would yell at me and then hang up.I broke down and I kept trying to make it work but she just yelled and ignored me.She would break up with me atleast once a day and make me beg her.It finally stopped and she got nicer.I found out she was still texting a guy for a month after we got back together.I was so upset,I wanted to kill myself.I could not trust her but I felt attached to her.I fell in love with her when she was faithful and I couldn't just let go.Things were ok for about 2 months.Then she started acting weird again,ignoring me.We started fighting again.She went with her sister to Lowes one day.She ignored all my calls and texts.I found out the guy she was texting works there,and she went in there and hugged him and I don't know what else she did.She broke up with me.I wanted to come to her house to talk.She said for me to come over,so I did.She had her sister and brother in law meet me in the drive way telling me to leave.I told them she said I could come over.They called her and she lied to them.I left and was ready to forget her.She made a meetme and facebook account and was flirting with a ton of guys on there the same day.I don't know why but I love her still.It kills me seeing what she is doing.She has had one guy at her house since we broke up a month ago.They broke up but she is still talking to tons of guys.I know she is no good but I can't move on.She plays games with me still.She will talk to me and say it is all going to stop and were going to fix things.Then she never stops,and she ignores me.She will block my number and then unblock it.She tells me she loves me and wants me but she isn't ready to stop flirting with other guys.I am being thrown around and it is killing me.I have attempted suicide a couple of times this last month and I asked her if she would stop me.She ignored me.I have tried fixing things and I've done all I can,but she won't even try.She says it will all stop and we will fix things but then she only does more flirting.Its like she has no guilt and doesn't care if I hurt or kill myself.I don't like her but I love her for some reason.I have tried praying and waiting and begging but nothing works.She is relentless with these games.We got back to talking for a couple of days,then I asked her to stop talking to these guys and she hung up and blocked my number.Its like she wants to cheat and flirt but I can't open my mouth and say it hurts me or I get left behind.I don't know what to do.I'm severely depressed and am seriously thinking about killing myself to get away from it all.My life is miserable and she has fun making it worse everyday.I was always good to her.I never hit her,we argued but thats it.I don't understand how she can be this cruel to me after 8 months where she said she loved me.She cannot make up her mind whether she wants me or not.She is humiliating me and making my life a living hell.I don't want to live anymore.I need help.What do I do?