Does your partners sexual past bother you
Currently no, but if we're speaking generally then yes a partners sexual past can potentially bother me. I have limits of what i like to engage in and i wouldn't want to engage with someone who's done a lot of kinks that i don't like, even if they have no intention of doing them with me.
As for number of previous partners - i understand that "waiting til marriage " is an unreasonable expectation but i think most people want a partner who can exercise self control when it comes to it, i.e not sleeping with strangers a lot. Or at all.