I caught her and she didn't knew

Our history: M27 F24 >2years relationship

Our sutuation: Regular fights on anything

confession:

I went with my gf in club. She was wearing almost much revealing top which is showing 70% of her boobs, 100percent of stomach and backless. She wored it as i have a kink of showing her up and she likes it too but i never wanted to share her because of love i have for her. A guy with normal height 5'8 but with good physique and facecut came to talk to us as he is alone wanted someone to talk and have fun normally. She allowed him on our table. This guy continuously hitting on her and she is enjoying it too and she asked me to be calm about it as this is one time thing. I knew she is liking him but i ignored because i was unsure.

we were 2 bottles down of vodka and playing truth game so we were talking about sex life and all. Suddenly he dared her to show first picture she took today on snapchat. She accepted it and it was her hot picture in the same top but only nipples were covered rest can be seen. He got the boner after that. After a while he got up and went washroom . After he came back i went for the same. When i came back entered the bar gate i saw them kissing deeply in the cornner table we took. They didnt saw me but i stood there as if something stopped my legs to move. They stopped after 10sec. and she saw me and she thought i didnt saw her. I acted normally there as i knew if she can cheat me here may be she has lot of hidden stories which she never told me and i need to discover them all now.

So now they were sitting side by side and i am in front of them. I kept my phone on table but dropped it and picked it up and saw my gf hand is on his lap (probably she is touching his dick) .

I was unaware she shared her number wit him

We came to our room back and after 1 week i checked her phone and she was sending her nudes to a random guy. Idk that time if it was the same guy from cafe.

later on she told me that this cafe guy followed her on insta and she also talked to him about meeting again. So that time i said okay just to see what could possible go wrong. Weekend came i got back to my hometown to surprise then but they were not there as they went for a trip to nainital with their friends so i stayed one day at my granny's place but my gf knew i will come back on sunday evening but i went one day earlier. It was 2bhk where we were living. So i opened lock she didnt knew i came. I opened our room and she was holding a guy d8ck in her mouth. They both were fully nude and it was that same guy.

arguments/ fights/ convos / crying/ everything happened for about 2 hours. I slapped that guy hard too in between and he couldn't say a word and he left.... okay now she told me evrything that she got carried away and it is the same person she is sharing nudes with and they were about to have sex but i came in time. I made up my mind already of leaving her so i left her.

Post betrayel

Now i am daily getting flashes of her kissing him in cafe and sucking his dick se ding him nudes. which Eventually makes me go horny and touch myself too thinking of her doing these stuffs. But i honestly want to get rid of masturbating thinking like thatas it is affecting my sex life and my personal well being.

My wants

can anyone help me what to do

how to get rid of that

how to do thinking of her being with me and doing things infront of me

please 🙏 🙏 help