What really turns you on?(guys)?

my boyfriend and i are together a little over a month and the first time we had ( first obviously) for some reason he "went away" if u no what i mean! i feel like its me putting him off but he says its not and tells me im extremly y etc...we tried again about a week after and it happened again...was d second time bcuz he felt under pressure? we were drinkin d first time if that means anything!! im not sure if it does cuz with my last boyfriend nothing mattered he'd always be hard!!or is it just me??im absolutly mad about him and he said hes mad about me too!!!