Help!

A little background that’s relevant to this - I’m white, my whole family is white, my boyfriend is black. We have a baby together, we don’t live together.

My boyfriend broke up with me this afternoon and said he wants 50% custody of our 4 month old son. I was completely flabbergasted as we have NO issues between us. I asked him if we could go outside and talk so I could find what the hell was going on. We were at my family’s house celebrating Christmas and I didn’t want to stress out in front of them.

He REFUSED. He said he didn’t want me to see his “other side.” That also caught me off guard because he’s the sweetest guy I’ve ever known. He finally said that there were racists in the house and when I asked who, he said my MOM. Who is completely not racist! My boyfriend wouldn’t leave though because he didn’t want to leave our son in my care alone because I “trust racists to be in his life.”

He finally left after once again saying we were done and that I’m like my mom even if I don’t know it. 😱 he said he’s never seen a racist side of me but every white person raised by a racist has one.

He’s basically RUINED my first Christmas with my son as I’m physically ill ( can’t stop throwing up!) from the stress of this!

***I finally found out what my mom said (from my cousin)...she said that the baby is way more fair than daddy, which surprised her.***

Now, his family has said shit like that 100 times and has never phased him. My mom hasn’t seen the baby with him much so it probably was surprising to her.

Firstly, for others in a mixed race relationship, would a comment like that offend you? To the point of leaving the parent of your child and not trusting them alone with the baby!? Mind you, we don’t live together so I have the baby alone all the time and dad lets us come over once or twice a week.

How do I approach this and have a discussion with him about it?? My moms best friend is black, she loves my son more than any of her grandkids and has said it multiple times. She is NOT a racist person!

Edit : I’m honestly so distraught now, I can’t even enjoy the rest of Christmas with my kids. I just want to sit and cry and somehow have to cook them dinner in this state while dealing with a teething baby.