[IG_Semmelweiss]

That personal observation is an excellent point of wisdom.

I would replace "dislike" with "incompatible" though.

You can be very attracted physicslly to someone who is your intellectual and economic equal, to then not be able to hold it together because that person's personal traits ans preferences are so far off one's own. It goes beyond "he liked to watch tv instead of going out to eat w me"

That being said, your observation should be a heuristic, and it should be repeated more often.