Am I wasting my time?

I met a guy on tinder in 2015, but he lives in a diff city. He's 30, I'm 24. After a year of talking, he flew up to see me for the weekend. We got along great & he said he liked me, but I thought he was just saying that to get me in bed. Then he moved to London for work (Fair enough, since we were not official, plus I thought he just saw me as a bit of fun & it wouldn't work out anyway being in diff cities). 
He hated London & moved back after 4 months. We stayed in contact (less frequent) but it's picked up since he's been back. A couple weeks ago, he said he still liked me & could see us together, & would like to somehow see me more regularly one day. I told him I felt the same. 
We've talked since but haven't discussed that any further & he did not wish me happy Valentine's Day today. I feel sad & confused. Am I overreacting? Do you think this will go anywhere or what should I do?