There's a lot to number 1. I was about to go down on my gf a while back and she waved me off. I don't know why exactly. And then I noticed that I didn't offer again for several weeks. I'm not really sure why I did that. She responds enthusiastically when I go down on her but that one little rejection, as insignificant as one can get, was enough to wave me off for weeks.

It may not be for everyone, but I appreciate my gf asking for me to go down especially after she has wave me off previously. I think it can be a hot part of dirty talk.

If you are wondering why your partner has not headed south of the border in a while, you might want to try asking for it. They may have stopped offering for a really trivial reason and asking for it might get things back on track.