Ex keeps contacting him

My boyfriend broke up with his ex of 18years. It was a super toxic relationship. She always broke up with him, caused major drama, never paid for anything, and cheated on him. The stories go on.

We got together shortly after they broke up. We now live together and have such an amazing relationship. We respect one another and have a very open line of communication. Pure bliss really :) we’ve always known we were soulmates. Only problem is she keeps contacting him. She text him fuck yous and you abandoned me, and will send him pics of her body. She also has asked him to hangout from time to time to talk but he always says no. He literally told her “I don’t want to talk at alL” and then her next message was asking to hangout.

I’m not sure how to handle this. It disrupts our life and it bothers him. He hasn’t blocked her. He has a lot of history with her family and is still close with them. Also, they have a few odds and ends to clean up from having intertwined lives for so long.

How do I handle this? Am I allowed to be upset? Should I ask him to block her? They did break up not long ago so...I try to be understanding but at what point do I speak up. Also, she doesn’t know he is with me let alone anyone. We are trying to keep it secret for a year since we work together and dont want added drama from her or anyone in our lives.