I am romanticizing my relationship and need advice on how to move past it

I (29F) broke up with my boyfriend of 2 years about a month ago and I’m having a really hard time not romanticizing our relationship. He was an amazing boyfriend but he wasn’t a great person. He was racist and misogynistic and kept it a secret for 2 years so basically lied about who he was. I keep trying to remember why I broke up with him but I’m romanticizing all of the great things he did like being caring, gift giving, and a bunch of other stuff. He also already has a new girl which is making everything much more difficult. I think I have this huge fear I won’t find someone who’s capable of that again. Please give advice or hope that it will get better cuz right now it sucks.