Hey folks, I'll try to keep it as short as possible. I've recently went for my father's weeding to Thailand, my gf was really unhappy about whole trip, she was really jealous and she kept throwing angry tantrums at me throughout the whole journey, making me really uncomfortable. I couldn't enjoy my father's weeding because of her calls, messages, even tho I acted completely fair and didn't cheat etc. Anyway, when I came back I discovered that she's been texting her ex when I was away. She lied to me before and I promised her if it will happen again I will dump her. So I asked her if there is something I should know, several times, she played dumb, she's a great actress. So I told her that I knew and broke up with her. She lives with me so she left the next morning, begging me for second chance before she left etc, calling my mum, my friends, usual stuff. I told her not to contact me anymore, I'm sure I dont love her, it's just I feel this terrible guilt, other than those lies she was really good to me, looked after the house, cooked etc. Any tips to how to deal with this feeling? I think the breakup was justified.