Many men who go for much younger women do so because of a sense of inadequacy and insecurity. I know it doesn't make sense particularly but they know that an older woman whose life is already established or going to have their own thoughts, ideas, life, career, friends...
They want someone who they believe is easily malleable and controllable. Someone who will look up to them and bow to their authority.
This can work for a while until the younger woman matures and develops her own life, career, interests outside of the home amd begins to question why he is behaving in this way.
A lot of young women who go out with much older men are looking for stability, security and someone to take the reins in an adult life that they don't feel fully equipped to deal with - especially if their own upbringing wasn't stable.
But after a while, it feels like a cage.
I know several unhappy single-ended in their 50s who are angry than women in their 20s won't date them. Not a specific woman in her 20s who they feel a connection with, or get know well with. Just any and all women in their 20s.
I unknowingly dated one such man. I was 8 years younger than him. Not only did he tell people I was younger than I was, he was quite clear that, at his age (54) he didn't expect a woman to challenge him (express a different opinion know anything or to have knowledge jn an area he didn't). He told me women in their 20s are 'easier to deal.with'.
It is perfectly normal in a relationship to have your own friends and go out with them!
Well done on going to university.
I'm 47 and finding a man around my own age who isn't an 'old man' has proved to he tough. Go out and either find someone your own age or enjoy your life with your child/ren.