WTF post UPDATED

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Okay, so I made the post about my fiance messaging other girls from Craigslist and I didn't know how to say anything to him about knowing. Well I confronted him about it, and he said he really don't know why he did it and he wasn't ever going to cheat on me nor could he bring himself to do it. I also found out he was messaging an old friend he had went to school with and they were kind of flirting back and forth but he deleted the messages but I had seen some but not all. He says he knows it was wrong and he's apologized so many times and he's been extremely loving towards me and tells me he wants only me and he knows that. He says he couldn't ever bring himself to cheat and that's not what he was going to do he says he never thought about cheating and he really doesn't know what he was doing. But he knows he was out of line. I'm still here and trying to work this out. Am I really making the right decision?