Fizzled out after 6 dates, could I have done anything different?

I went on 6 dates with this guy and I saw so much potential. He was exactly my type, we were aligned on many things, had fun on every date and texted everyday. He was also sweet, consistent, and affectionate; he baked me my favorite cookies! I can be shy in dating, so I did my best to push through that and show interest through compliments, small touches, teasing, and opening up about myself. I also initiated the 4th date. We never had sex, but came close to it. At the end of the 6th date, he initiated a check-in convo. He was going to go home for 3 weeks for the holidays, return for 2 weeks, then travel a full month with friends. We agreed we enjoyed our time together, wanted to stay in contact, and meet when we could.

The 1st week or so he was away, we texted everyday as normal. Then, I asked to facetime and although we never ran out of things to talk about before, it was a bit awkward. We chatted for under an hour and it wasn't terrible, but it wasn't amazing either. For the next few days, the texting felt forced. I was losing interest, but thinking about how great things were before, decided I wanted to keep trying. I was thinking of how to spice things up when he ended things. He said he hadn't really felt the connection he wanted for a LTR and since we wouldn't be able to see each other much for a while, it didn't make sense to continue. I wasn't in love so I wasn't hurt, but I'm disappointed and confused. I don't get why things were good until they weren't, why despite my best efforts, he wasn't interested enough to try longer.

Fizzled out after 6 dates, could I have done anything different?
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