Did he really cheat on me?

We were in a long distance relationship (20M, 19F), and we both were very much in love and since I was his first gf and he was my last attempt to find a real love, we had a very strong bond but several fights too,

Larayiyan was quite bad to a great extent because I used to say a lot of things about his character and forgot to respect him, but I loved him like a little boy, he was an innocent man, I did not know how to give him emotional support because I did not know what he was saying, he was too in love that he never did s#x in my text in our 1 year relationship, he loved me so much that I never thought of it. ,

Things got so bad over time that his mental health started to suffer. We knew we should separate, but after we both lost each other, we fell in love even more than before, and the desire to hug and be close to each other increased, and it started to affect us, and the last time we broke up, he said, "A man is not a man without his ego," and I replied, "Stop behaving femininely." And the man who never says so much, suddenly said so much to me and left, and I didn't respond to anything.

Meanwhile he was drunk and joined an insta GC where he met his long lost friend and a random girl. He flirted with her and then found out she was an orphan and couldn't speak, so he felt bad about her. They talked a little and the girl started to feel like family with him and she developed feelings for him, and he said no, by doing this we'll hurt ourselves and each other. She left and came back 3 days later, she said she had cancer and...etc. He felt bad about her, so she forgot about me, and at that time she showed me that.

and He was with me for two days until I found him, but he kept sending her the same messages, and he kept sending me the same songs, which he said he missed me. That girl was putting those songs on her notes. I found out, and I asked both of them,

That girl didn't know anything about him, not even his relationship, name, age, where he was from, or his past. And my boyfriend also didn't know anything about that girl's age, how she looked, or why she had so many followers on his account. He told me that he had good feelings for his girl.

And then I insisted his friend. How did you find out what happened, he told me all this himself, he told all this to his friend in a voice note and he forwarded it to me.

Now I feel that he will come back someday, so I will die even though I tried, but I don't know how I will end up here, I feel that no other woman can take my awakening so easily, it was so important for me, even then, he was so spoiled, there are thousands of girls like us, did he hold everyone's hand?