What does it mean when a guy tells you the only reason he watches porn was because he wanted to last longer in bed. What’s the meaning?

he is full of BS................if he chooses that smut over you, then he sees you as 2nd best.............time to get rid of the turd

It means he's a low life scum. He wants you to condone his porn watching habits, thinking that he does it just for your benefit. It also means he doesn't think about you when he's at his sexual best. He will always make excuses for his worst behavior.

It means he lied to you.

If you get off a lot, your stamina increases and you can last longer.