Definitely agree. And I've banged a lot of chicks where the sexual chemistry was definitely not great. Current chick and I have unbelievable sexual chemistry. We can fvck literally every day and it's not gotten boring or complacent at all. She went out of her way to tell me after we first fvcked that she felt we had really strong sexual chemistry and has brought up that conversation quite a bit since then.
Women fall in love with how the man makes her feel. Passion, excitement, value, frame, charisma, etc.
Sexual chemistry DEFINITELY helps keep them around and from wondering off.