Search Results: forgive cheating girlfriend

My girlfriends ex cheated on her 3 times, but she only know about 2 of them, the 3rd one (the one she doesn't know about) being the worst because they went further.

She's been my girlfriend for almost 6 months and she's starting to befriend her ex who we'll call E. E was a really good friend of mine but we fell out around when I started going out with my current girlfriend, who we'll call G, who's E's ex (E said he was okay with it). Me and him still don't get along at all and G has started to meet up with him which I'm okay with, I trust her but seeing E cheated on her twice and was a dick to both me and her I find it odd how quick she's forgiven him and has started being friends with him. Which sometimes makes me think she still has a soft spot for him.

My question is, should I tell G about the third time E cheated on her? I feel really bad for keeping it from her, but I also promised E I wouldn't tell (even though we're not friends I still keep to my word). But the problem is that whenever E comes up in conversation which isn't often I get this really bad feeling because I'm keeping it from her. I also don't want her to think that I'm keeping other things from her as well, which I'm not.

I cheated on my girlfriend with her mother this week? I need advice?

I have a confession, I got seduced by my girlfriends mom FIVE TIMES this week. All three of us drink all the time, and on Sunday night when my girlfriend made another beer run to the store (She can hold her liquor a lot better than me) anyway me and her mom were left at the house together. Out of the blue she told me I was a handsome young man, due to being drunk one thing led to another and we bing-banged-boomed. Before my girlfriend made it back we managed to get dressed back up, and I instantly felt bad about what I did but was amazed at how good the sex was. When I was having sex with her, I saw the sun, the moon, the stars and the heavens, mountains and the oceans unite into one giant phenomenal display of awesomeness. I saw life from a completely different perspective now, I was one with the universe, and everything about Life and my existence made sense, I was at peace. However we ended up doing it four more times this week, this morning made it the 5th. I can't hold on to this guilt any longer, I love my girlfriend and want to marry her someday. Her mom wants to continue, but I convinced her that this is wrong and she agreed to stop. How do I confess this to her and show my regrets please?