How old is your wife? Is she menopausal? Sex could possibly cause her pain and discomfort due to thinning of the walls as well as dryness and her libido might be quite low. 6 times a year might be all she can handle. Frankly my needs are quite different in 50s than they were in my 30s. Are there other things you can do besides intercourse? Also is there are other type of affection you can show to each other? Massage? Touch etc?

It’s neither here nor there but bed bugs are actually a big issue nowadays even in the most fancy hotels. Many people are reluctant to disrobe in hotels due to that. I honestly prefer not to be intimate in hotels.

I am sure telling her you’ll leave her if she doesn’t put out, isn’t going to make her wanting sex. You can’t force it

Having said that I understand your struggle. Sadly many people are either not sexually compatible or just in different places in life with different priorities. I keep hearing on this forum and irl from women wanting more sex and their husbands aren’t providing that. It sounds like they’d need to be married to someone like you and your wife would be happier with their husbands. People seem to be mismatched in that regards or just don’t have same priorities