Assalamualeikum, I am married and found out that my husband is gay.Is it a sin to live with him or should I get a divorce?

Assalamualeikum, I am married and found out that my husband is gay.He says it's not his choice to be like this, but I'm afraid it's a sin to stay with him, I don't know what to do.Is it a sin to continue living with him or should I get a divorce?Or is this a test from Allah?