I still don’t understand why is it that my ex watches me from a distance and looks at me along with his friends but acts like he doesn’t know me?

Basically I noticed that my ex literally walked away as I was walking in his direction as we both were over a mutual friends house and as he heard my voice he hurried up and walked away but not far he stood in our friend yard with his back turned towards me which is confusing because he’s now starting to do this out of nowhere we broke up 6 moths ago because he cheated and I also notice that when he left the yard he went across the street to sit and smoke with his other friends and as I was getting ready to leave and walk pass then he was looking at me and watching me in a since from across the street but not when I was walking near him earlier I’m not understanding what is his problem with me? He’s acting like he doesn’t know me or something I’m fine with him keeping his distance and I’m not trying to force anything I’m just not understanding why is it that he’s not acting and behaving this way for no apparent reason towards me when I don’t bother or speak to him but a few weeks ago he don’t do this he spoke to me when we bumped into each other
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@Anonymouswoman4309 yeah he’s probably feels ashamed that he got caught in the act cause no one came back and told me the reason how I knew he was cheating on me is because my intuition kept repeatedly telling me literally like 2 or 3 weeks before me and him even broke up and he tried to gaslight me and manipulate me into thinking that he want cheating he was saying things like how tf are you going to tell me that I’m cheating on you oh you dumb asf and this and that no baby boy I was right
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And when I was trying to tell him about the situation with his friend he actually kind of wanted to hear what I had to say because he was like bruh just say whatever it is that you need to say then and I was like okay but it’s quite a long story and then he was like naw nevermind then I don’t even wanna know or even hear it so I said okay
I still don’t understand why is it that my ex watches me from a distance and looks at me along with his friends but acts like he doesn’t know me?
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