Would you feel ok with your partner staying friends with a man who knew he was cheating on you and promoted this behavior?

My boyfriend cheated on me emotionally (for all I know), and his best friend who I see sometimes knew about it and would promote these behaviors. Every time I hear their phone conversations, he’s also telling my boyfriend about girls and it makes me so uncomfortable to over hear and honestly pisses me off. He told me this friend came from out of town and told me he’s going to hang out with the friend. This honestly makes me feel uncomfortable, since the friend only knows how to talk about other girls and promote this cheating behavior. Would you bring this up to your husband tell him you don’t feel comfortable with him going out with this friend? Or let him continue the friendship even if it affects you.

EDIT: for everyone saying I’m not putting the blame on my boyfriend, I broke up with him. Then ended up forgiving him which took a LOT of strength. However, seeing him with these friends put me in a place of anxiety because they were well aware of that era and encouraged that behavior.