26F - My 27M ex says he doesn’t know what he wants, but keeps acting like we’re together.

I (26F) and my ex (27M) were together for 3 years and have been on and off for the past few months due to a difficult history.

About 4 weeks ago, he broke up with me

A couple of weeks later, he reached out again. Since then we have been spending a lot of time together, kissing, sleeping together, staying over and acting like a couple. He tells me I’m beautiful, says I make him happy and has been very affectionate.

Recently I found out that two days after breaking up with me, he met another girl. I also found out he booked a two-week trip to visit a woman hes been talking to. He describes her as “just a friend” but given the timing and everything else, its been difficult for me to know what to think.

I asked him what he wants between us. His answer was simply ”I don’t know..”

I told him it hurt that hes going on this trip because we had originally planned to travel together during those same two weeks. He told me he has no obligations toward me and that hes still going.

At this point I’m just confused. His actions make it seem like he genuinely cares about me but his words and choices leave me feeling insecure and anxious. I have honestly been so stressed that it’s affecting me physically.

What would you do if you were in my position? Would you keep trying or would you walk away? I’m genuinely looking for honest perspectives, even if they are difficult to hear.