Having a baptism when you don't get along with my ex? What to do

I need some advice about my child’s christening/baptism?

Ill keep this short, my ex an I do not get along, we have a big history of one minute being ok the next he is really mean and nasty.

We decided together to baptise our youngest child in the coming months, we have been having issues and the past has resurfaced. We don’t get along at all. One if his family members will be godparent. I’m wondering how can we do this together when he hates me (he has told me on several occasions) our families don’t get along either.

I guess I’m asking, should i still go a head with it and do it together? Should I cancel it? How can it be a enjoyable time when it will be filled with tension? I don’t know what to do.