She said "no"

In a return to some intimacy, last night she cuddled up to me and I got aroused and she stoked and then said "you can wait a while".

I wonder if I should have a conversation with her?

Not in the bed room and not just before we go to bed.  I think the jist of what I would like to say is that before we were married, we did not have sex yet we were close.  Plenty of kissing and cuddling and caring and desiring all without sex.  After we were married we had sex but over time it seems to me that she has become disinterested in sex.  So I would certainly trade sex for intimacy.  The final bit being that having the tease and denial bit, adds edge, adds sexual tension, adds intimacy.

I wonder .....