What is the point of the guy who turned to his girlfriend before me and denied it?

Anonymous
What is the point of the guy who turned to his girlfriend before me and denied it? We decided to stay friends with my ex-boyfriend. but meanwhile he was saying that I will still marry you, I love you or something then I saw him following up with his ex-girlfriend. You cannot ask me to account, he said, we are separate and we are just friends with that girl. I said okay, but if I see your sincerity with that girl or a wrongdoing with that girl, I said I'll show all the messages you sent me to that girl and she said okay. Later I saw that they were lovers. but he also surprised the target. He pretended to be a boyfriend with another girl and even organized one of his friends and convinced me as if he was a girlfriend with another girl. 4 months have passed, they broke up with his ex-girlfriend, he returned to me, of course, I thought he was still dating another girl. He lied just because you could prepare for the exam better. In short, he is always hiding from me that they are dating that girl. Could he be doing this because I talk to that girl and tell everything? The last time she said don't write me again they made peace with that girl but she still denied that they were dating that girl
Updates
+1 y
...
What is the point of the guy who turned to his girlfriend before me and denied it?
4 Opinion