Do you think it’s worth it, should I keep contact? Help?

Let me start off by saying that I started texting and chatting with a guy I like that I met on a dating website. Let’s call him Juan. I live in Los Angles and Juan lives in Texas. We keep contact by texting and phone calls for about 4 months now. We would both flirt and talk a lot and try to make plans to fly over to see each other. I liked Juan from the start but now I’ve grown even more attached to him. He really liked me a lot as well and showed a lot of interest in me. Problem is for a little over a week now he’s changing a bit, he still texts me but he does not flirt as much as he used to and doesn’t seem as into me as before. I know he’s still trying to get over his ex, they broke up a couple months ago but he has mutual friends with his ex, so they still hang out at the same places. On top of that Juan tells me another man that lives in the same city as Juan is trying to pursue things with Juan but Juan says there just friends. Another thing is that Juan goes clubbing A LOT, I’m not really the chub every night type. It sucks that I’m getting more attracted to him and the vibe from Juan now seems the opposite. When I talked to him on the phone today i said “So I’m very excited to fly there or for you to fly here so we can finally see each other!” Juan just replied “Yeah that would be cool.” He doesn’t seem as excited as before. So my question is should I cut contact with Juan now to avoid getting burnt or should I still keep contact and see what happens. If i keep contact and plans don’t work out I’ll be devastated. What would you do? Help! Thank you in advance.