wtf why do we have feelings!!!!

Dj
So there's two guys and I don't really know which feeling to go off of. One guy gives me butterfly's in my stomach whenever I see him and whenever we talk I get all tongue tied so I just don't really talk to him that much. And then other guy we have such a great bond and I can be a myself and whenever we're together all we do it laugh & talk 24/7 and I have feeling but I don't get butterflies like with the other guy. What do I do?