Anxiety, boyfriend, wedding

My boyfriend is planning to take an online class to become an officiant for a wedding for his two best friends.

The bride-to-be has experienced domestic violence from the groom- to-be and overall, the relationship is toxic. There is chronic alcohol abuse as well.

As a victim of domestic violence from past relationships, I find it very difficult to try and support my boyfriend with this “task” he has been given.

He is skeptical of their marriage but justifies it with being “a good friend”.

I understand that it’s the bride’s choice to get married. I know this isn’t about me, but how can I support him through this even though it aggravates my anxiety?