Is this a red flag or am I overreacting?

A guy I went to high school with texted me and we started talking. We have known each other since 6th grade. Today He asked me if I wanted to go to the lake with him and I agreed. I remember at one point, I felt something in my purse vibrating and the contact said incoming call from “Baby Samantha” and I told him “hey your phone is ringing” I didn’t mean to see his phone but it was right in my face. I’m not sure why but my entire demeanor changed when I saw that. I’ve been cheated on in the past by one of my exes and just played with as the side piece. I’m really tired of it honest. It just reminded me of every other fuckboy that I dealt with before.

I told him that if he needed to answer her that he can just call her back. He said that the girl that called was his exe’s cousin but for some reason, I find that really hard to believe. I was very annoyed and I couldn’t hide it in my face and he caught on to the fact that I was annoyed. He asked me what my intentions were and I said that mine were pure. He said that he isn’t talking to her like that at all and she was only calling him because she was making sure he shipped everything out to her but the girl kept calling over and over. He asked me what was wrong and I told him that if there’s someone else just be honest with me and no need to play games. He said he was sorry but it’s not like that. So I’m just conflicted with my emotions. I really don’t know what to think of him anymore because I saw that.

It was a HUGE turn off. Like I get it, we’re not together and shit but it just seems kinda fishy to me. I just don’t have have time for games & I really don’t wanna catch feelings if I’m just some side piece or something like that. He apologized but I just still didn’t want to talk to him for some reason… He said that he doesn’t really hit up girls like that, said that I was beautiful and he would like to date me if I’m down for that. I was considering it also but now I’ve changed my mind.
Is this a red flag or am I overreacting?
3 Opinion