Sugggestions please? Advice? Help! (Sex)

Agz

So but if a strange one really at least for me

But I have no clue who to ask or speak to so thought this community might be the best.

I have been with my boyfriend for 5 years, have never complained about our sex life.

Recently it has changed (still not complaining but a bit worried)

My boyfriend used to last quite a long time, to the point where I’d have enough lol

Now he doesn’t really last long, yesterday we thought we will go twice so first time is like the initial release and the second time would be longer. It turned out that the second time lasted even shorter than the first.

I’m starting to think it could be because of me? Maybe he doesn’t want to last or something like that- Although he gets frustrated that he doesn’t last longer than he does.

Could this be because of porn?

Idk !!!!!

I’m not sure how to help him, he thinks it may be because of the current pandemic / lockdown.

But I’m at a loss, it’s worrying me.