Mixed signals

I'm in a complicated situation. My ex and I broke up back in April, we recently reconnected. We have been on a couple of dates and have had sex. He stopped texting me and only really talks when we're face to face. I feel like he may be hiding something, maybe he has something else going on with another lady and doesn't want to leave evidence. I haven't been able to bring it up because we didn't see each other this weekend. What would you all do in my situation?