So she yelled and screamed at you in your home and didn’t apologize and now you have to host her in YOUR house? Hhhmmm. I don’t think so. She needs to behave

Honestly it’s not up to her if you two are together. She doesn’t need to like you. She needs to be civil though. I am concerned that your BF is allowing her to yell at you.

I have two adult stepdaughters.

They love me but if they didn’t, my husband would expect them to be civil. I can’t imagine him allowing them to yell at me. They would be shown the door. And one of my stepdaughters is rather difficult, generally speaking, but she is still civil with me at all times.

I’d be concerned about your future with him.