My gf cheated with someone gay

Hi, I am a boy who loved a girl that we talked online 10 years ago and we talked everyday and shared everything with each other, long-story-short in 2022 I confessed to her my feelings because I loved her and I was getting older obviously and looking for relationship, I did not forced her or anything I told her I love you and she was surprise and said I love you too, and we are lovers official and we were calling each other boyfriend and girlfriend like that, 7 months later I caught her talking to another boy and she was talking with him in way I didn’t like and I don’t think any man would like it, I was angry and asked her to explain why she was talking to him like a lover, she told me to not overthink this and she was angry and then we got into an argument and I blocked her and then she came back to me crying and saying that she’s sorry and she love me and like that and we got back to this relationship and then years went by. It was like maybe two years during these days she was suspicious, but I was like try not to overthink this like she would talk about homosexuality and that stuff and I told her that I do not have any problem with homosexuality in that stuff and we and I took care of her. I loved her I give her gifts and that stuff she was the only one that I loved so much and then like in December she was talking about something that she cannot let go she didn’t tell me what is it and I was comforting her and that’s OK and you’re strong like that and then in February actually the day before Valentine, we got into an argument because your she started to act weird and that say suspicious I try to ask her and the more I ask her if she gets angry and distance after one week of arguments and texting, she, she told me everything that she was trying to see someone else in December that he was like a homosexual is gay basically and she wanted him because she loved him and and he didn’t like her back because he didn’t like girls obviously so I got angry and I was confused about this like why would she do this and she told me do you want the truth? I said yes she said that she never loved me and she was just saying that she loves me just just so I don’t get angry or or just get sad basically and she never loved me seriously and she actually loved him and loved someone else before our relationship that loved really loved but me she didn’t love me seriously and when when we broke up, she was laughing and acting chill while I was crying and saying, what are you doing? What is this? I didn’t understand anything but now I feel like I connected the dots.