Should I keep believing him?

My friend and I are attracted to each other but he doesn’t know what his feelings are so we’re not officially together or giving it a shot.

We’ve been sexting the first time he asked me to stop he was flat out honest because he wanted to date someone else. It hurt so much.

They needed up not working out they only dated for a month

We talked about it and have since had sex and got back to sexting but about 2 weeks ago he asked me to stop for the time being I apologized if they were distracting (he studying for boards) and he said it was ok I then asked if it was another girl. He said no

He has been nothing but honest so I know I should believe him but sometimes a get this feeling or maybe it’s just me since we’re so far apart right now that he’s with another girl. I just don’t think I can go through being hurt again but he means so much to me

He posted in social media an outing he went on and I asked if he was on a date and he reply with “was I?” He likes to play mind games in general but I know if was he would be straight up with me knowing how I feel and what his previous dating did to me.

Should I be worried and feel like I’ve been lied too? I just know he doesn’t like to lie since he’s been lied to before so idk what to feel. Should I trust his word when he said it’s not another girl and when he looked like he was in a date he was just playing with me?