Did my mother sexualize my son

Me and my son had a heart to heart yesterday. He lives with his dad and just turned 19 and we tried to talk out a lot of our problems. We got in the topic of sex. He's never had a gf before and he told me it's because sex makes him uncomfortable because of how sexualized he was by my mother. We lived with my from from when he was 2 to when he started living with his father at 16. This is when we stopped agreeing. I was saying my mom never sexualized him and he said yes she did and it affected him a lot. What he is saying is my mom just always made comments about how good looking he is or how sexy is gonna be or getting and would play with his hair saying he's getting his big boy body. One situation he brought up that I actually did call my mom out for was when my son was 14 and he woke up from the couch with morning wood and my mom said "Well you're gonna make a young lady or women very happy one day with that". I called her out on that. He said he told my mom several times the comments made him uncomfortable and she never stopped but my mom is just like that. My son said 14 years of being sexualized made him uncomfortable in his own body. Idk. What do you guys think?