Question I don’t wanna ask my wife…

Hey ladies so we been married 10 years and sometimes I’ve noticed through the years that if we go too long or she has orgasmed and I haven’t and I’m taking a while and I can tell she seems to be getting pretty uncomfortable and telling me to cum whenever I want etc. ….. and then the V sorta loses its tone I guess I’d call it. The tightness she had sorta just relaxes and after a while it feels like I’m suddenly just poking like a hand full of cotton down there. And then that makes me take even longer to the point that I just stop sometimes because I feel like it’s hurting her or she is just over it.

So what’s going on in her head and in her body and lady bits when this happens?

Is it pain is it she came and is done. Is she annoyed by me? Is she too sensitive that she has to consciously relax her pelvic floor muscles to avoid pain? Idk. Help me out. It can start to play with my head a bit when this happens. Idk what to do so I just stop sometimes if I can’t get there super quick after I notice this.

It’s not a dryness issue that I detect. She seems to be wet still. To me.