Does trunks ever fall in love with pan?

No, it's never revealed who Trunks marries or if he ever falls in love. Same goes for Pan, Bra, Uub, and Marron. It's never even revealed if Goten marries Valese(his girlfriend in GT). He does show lot of concern for Pan in GT, teases her a bit, and even re-assures her when Goku leaves for good, but it seems that it's just a brotherly/sisterly friendship as far as the series lets on.