Boyfriend wants to go to party and dance with girls help!? ?

Okay well I was texting my boyfriend earlier and he told me he wanted to go to a club because I said I wanted to. (I only wanted to go for my birthday since it's on July 8 and hang out with my girlfriends) So I asked why for him after he asked me & he said to dance. And I was like you don't dance & he's like yes I do I dance a little. & I was like the only dancing that would probably occur is girls dancing on you. & He actually AGREED. ! And dancing guy on girl isn't very friendly it's twerking and grinding and What not. So after I addressed my issue Now he's saying he won't betray me & I can trust him & that he won't go if I didn't want him to. BUT we have a long distance relationship momentarily so I wouldn't even know of he did anyways. Yeah I know it's a trust thing and I don't want to be controling & I want him to have fun but I don't want to be cheated on in the process .. :/ The whole situation just makes me a little uncomfortable