I dated a girl for 4 years and broke up with her after she cheated on me. I then married my wife of 8 years 6 months later. Sometimes, you just gotta let them go son. It also wasn't a waste. You learned a lot in that time. What you want and don't want and don't need. Specifically that -blam!-.

Dude. I'm sorry you've gone through that. That being said, toss her crap in the front yard and set it on fire. Then go hit your guy friend with a fire extinguisher in the face.

Sleep with his girlfriend, maybe you two might actually be meant for each other.

You're a scrub if you don't break up with her. Who cares if it's a year, she obviously sucks. Also -blam!- your "best" friend, who the -blam!- is you're best friend if they -blam!- your girlfriend. You sir are a giant scrub if you actually continue with this lifestyle.

Nah drop her. I could understand the first time since they were drunk. I can understand forgiving her. I wouldn't have, personally. But that's just because I believe in maintaining your integrity even when your mental capacities are compromised. But cheating on you because you don't trust her around him? And now she refuses to stop talking to him in order to stay with you? Nah this is already starting to turn into emotional abuse. It only gets -blam!-ing worse from here. And please, for the love of God, take it from someone who knows what he's talking about. Get. Out. Now. Dump her and your best friend. Make sure all of their friends and family know what they've done to you. Then, leave them to each other. Once a cheater, always a cheater. They do not change. They do not feel guilt. They do not feel remorse. They Don't Love You. Full stop. They. Don't. Love. You. They are not sorry. It will happen again. I can't say this enough. Everything that they say, is lies. Every promise they make, they [b]will[/b] break. Do what I couldn't. Save yourself years of torture. Save yourself even more years of learning to trust again, of learning to love again, of learning how to let someone inside again. They will take everything that you are, and destroy it. They will take your very spirit and break it. They will not stop until you are so completely broken by their continual betrayals that you will literally want to end your life just to have a moments respite from the pain. And unless a passerby just happens to glance inside your living room window just as you kick that chair out from underneath you, you will not survive. Do not let them do that to you. Leave them.

Step 1) kick that -blam!- to the curb Step 2) get a new hotter girl friend who appreciates you and respects you Step 3) look back and realize how much better your life is since then Step 4) bang new said awesome hot girlfriend ery day Step 5) never associate with those people ever again Step 6) profit.

Once a cheater always a cheater. Leave her, tell your "friend"'s girl he cheated on her with your girl and then get rid of that friend. You don't need people like them in your life.

Speaking as someone who has experience both being hurt by toxic people and being a toxic person, there's only one solution: cut them lose. She just doesn't sound like a healthy person. In the long run, would you really want to spend the rest of your life with someone who cheated on you in your first year together? With your best friend? There's no reason to continue the relationship at this point. While I don't think the year would be down the drain, continuing the relationship after she cheated you would be a waste. There's reason for a lot of things, but not for that. You already gave her a second chance. She doesn't deserve a third one. As for your friend - I honestly think there's more of a problem with him than your girl. I can sometimes understand cheaters, but I could never understand people who sleep with their best friend's girlfriend/boyfriend. It's just disgusting and disloyal. There is a code to follow. Get rid of him too. On the other hand, hit up his (ex?) girlfriend and bond over your shared shitty experiences. That sounds like it could be fun (inb4 you get married and because I suggested it I am your best man at the wedding).

This is a question? She'll do it again. You'll never trust her again. Trust is like a mirror. Once it's broken, it's never the same again. Find someone worth your time. It wasn't a mistake or accident. You don't trip and end up with a dick inside your vagina.