Am I doing something wrong if it takes him a while to ‘finish’?

I’ve been seeing this guy recently and its being going well!

we’ve slept together a few times and he has mentioned a few times that it takes him a while to finish, the first few times I didn't think much of it as it was our first time sleeping together and we were both a bit drunk so i didn't expect it to be fireworks.

however since we have slept together a few more times, this happens every time, he takes a while to finish and we have to have a few breaks inbetween, i keep asking if there's anything i can do differently but he says i’m doing everything right.

A few times he had made a comment that i ‘make him work for it’ and i’m not sure what he means by that? I myself take a while to get there but told him that and i finish before he does sometimes.

Am i doing something wrong, is he not that attracted to me, or is it normal for some guys to last a while

Am I doing something wrong if it takes him a while to ‘finish’?
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