<human>: So a year and 6 months ago I had a heart to heart with my long distance girlfriend (I mean like 4000 miles long distance) I knew something was wrong and she revealed that she had not only been having another relationship with another guy but had slept with someone else and had made out with another guy. I was in bits but (maybe I was an idiot) I forgave her she seemed genuinely sorry and didn't want to let me go. After a while we got engaged and have been going through a long process of making our long distance relationship no longer distant. But over the last few days I got suspicious of this older guy she has been hanging out with.........just the two of them.......during the day.....while his wife is at work. Last night I got super paranoid and used her password to log into her Facebook (i'm not proud of that at all) but sure enough I was right they had been making out......she had been swearing for a full 6 hours before that there was nothing going on. I confronted her and it all came out. She said that she is lonely and needs to hug and kiss people and i'm not there. I said in the three years we have been together I never even looked at another girl! What do I do???? I love her so much and I want to marry her but after this........

Give me the gist of the text in a nutshell
<bot>: After cheating on me three times before I find my fiancé has cheated again and lied until she could lie no more, but I still love her what should I do?.