<human>: So for the past 2.5 months I've started ballroom dancing and I became dance partners with the guy who I mentioned in my title. We've practiced a lot together and competed at competitions. Just recently we crossed the barrier where we're dance partners, but also friends. Just this week he asked me if I wanted to go see a movie with him and we went out to a bar after and hung out (we paid separately for everything). We text regularly about innocuous things (both of us initiate conversations) and see each other at least weekly to practice together. When we have hung out there isn't really any physical contact besides a hug maybe, but with dancing obviously we touch each other a lot. 

Anyway, this guy has a long-distance girlfriend so I try not to read anything into him asking me to a movie or wanting to text with me. But regardless, I've started to develop feelings for him. I definitely don't want to act on my feelings while he is dating his girlfriend - I want to respect his relationship and his feelings. And I also definitely don't want to ruin our dance partnership! 

How can I manage my feelings so I don't ruin things or make him uncomfortable? And also don't get myself hurt in the process?

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: Falling for my dance partner who is taken; how do I manage my feelings/respect his/keep from ruining our dance partnership & friendship?