You were only a few months into the relationship and you found out that those qualities were being used to hide misbehavior.

He has surface level good qualities but extremely poor character. The poor character is what you're going to be dealing with long term. The good qualities will be dropped as soon as he thinks he has you hooked.

You have to understand that it is normal for someone to appear "perfect" for you at the beginning of the relationship. People put their best foot forward. They do what they know you want so you will consider them for the role of partner. The difference between someone who is just putting on a facade and someone who is genuinely a good person is that the good person maintains all these good traits consistently and long term.

My ex, for instance, was "everything I wanted in man" and sucked me into a whirlwind romance and marriage. Literally the day we married he dropped the mask and I discovered I was married to an absolutely miserable, selfish, abusive person. There were signs, but I ignored them because he had that fake perfect man persona which made me question my sanity if I ever had concerns.

My current partner, on the other hand, is a genuinely good person. He didn't playact a good partner until he had me hooked. He IS one, to his core. He communicates openly because it is genuinely important to him. He is kind all the time because he is a genuinely kind person. He is not good to me only to get something from me, but because his goodness is a core part of his personality.

It takes time and caution to find out whether a person's behavior is genuine or not. You have found out that your bfs "good person" persona was at least partially false. It would be really foolish to continue with him.