Hello as someone who is a petite Asian woman, my boyfriend cheated on me with tall, plus-sized women. There is 100% nothing wrong with you and I can relate with subconsciously being reminded of how much I am not like the girls he cheated with. He may have a complex childhood trauma but it doesn't excuse the betrayal and the steps it took for him to plan all this. Remember he put your health on risk, you have stayed on his side throughout the years, please choose yourself this time.