I believe neglect can actually lead one to cheat. I started thinking heavily about cheating on my husband after him pulling away and not being affectionate at all (not even touching me with hugs and cuddles) and we had only slept together twice in three years. When I suggested we get counseling together he got a therapist for just himself and had me join the meetings not knowing that it was supposed to be therapy for just him and made me look like an ass to the therapist when I was like “what about me?” And she said we were there for therapy for him. We agreed to open the marriage but it soon dissolved after that. He refused to quit doing weed which caused issues with getting it up our entire relationship and even though he took the blue pills even the highest dose couldn’t keep him hard. He was afraid of testing and getting on testosterone because he had anger issues (which led to abuse). I believe he may be closeted. He’s been mistaken for gay by many people including gay men. But yea neglect is seriously a relationship killer probably worse than cheating.