<human>: Could you distill the essence of the text into 1-3 sentences?

I'm starting to have feelings for a friend that I've had for 3 years again. We both had feelings for each other at the beginning of our friend relationship but we quelled those very quickly. For the past 3 years, he and I have been in and out of our own separate relationships, with his ending about 2 months ago. 

At the moment, we've been flirting a lot through messaging and we have kissed and fooled around a little bit and since I'm re-developing feelings for him, I'm concerned about our relationship.

I have a feeling that he's rebounding since he did not receive a lot of affection in his past relationship and I don't want to be a rebound. I would really like to date him one day, but since he is fresh out of a relationship, I don't expect him to be ready anytime soon. 

I'm going abroad for several weeks this summer and I'm worried that I'll miss any chance at asking him out since that is coming up really quickly.

I would appreciate any advice on if I should drop it and move on, or ask him out at some point. I am having a hard time figuring out if he does like me or if he is just rebounding.

Thank you!!
<bot>: I have feelings for my friend, but he's newly single. I'm going abroad for the summer and I'm not sure what to do!