i always think that the bottom has the hardest job, and it is my role to satisfy him as best i can, that means pretty much on his terms. if i satisfy and excite him, then i have a satisfying and exciting time as well = great sex.
most of the time this means going slow and responding to his signals to build intensity. for example, i love nipple play, but tugging or biting straight off is too much for most guys, so i start kissing and licking, then gauge if a playful light nibble works. sometimes yes, sometimes no.
as the other guys have mentioned, it may just be the wrong match.... but this is not a reflection on you, there is no right or wrong, just the right match or wrong match
there are plenty of guys who like it a little rougher, maybe have some fun with them.