Bad in bed?

Recently my s/o said I act like a dead body during sex? Witch made no sense to me because Most of the time I'm on top? Maybe I'm not doing something write. Aldo during sex it hurts not the outside of my cuchie it's the indie so we pause when he's on top I doesn't hurt as much n he tells me when he's on top I act like a "dead fish" in not too sure what role I should be playing when I'm pined to the bed what is there to do while he's on top n I'm not free of hands? Any advice ? What do you do when your mans on top?