AS partner cheating

Hi, I'm new to this but my partner is recently self-diagnosed AS. He is very intelligent and high-functioning. I just found out that he's being cheating on me in a non-sexual relationship for 3 years with a much, much younger woman  (And, please, before anyone asks, yes, you can cheat without sex or even romance.) Having given this a LOT of thought I think this is more to do with narcissistic personality traits than AS. He's done online tests for various personality disorders and this one fits best to his characteristics, although I appreciate it's all very fluid. Any (helpful) comments or advice gratefully received. 

Parents Reply
  • Well, no, it is just excluding you from a friendship. I meet a woman, when out walking, very often, we also often have long talks. My wife knows this happens, but has never met the woman, because my wife does not walk when I do. I wouldn't classify this as 'cheating' in any way. It is just a non-mutual friendship.

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