My step son feels like my mom ruined his wedding

My step son recently got married! My step son is gay and my husband and step kids are Jewish. My mom has made comments about him being gay and him being Jewish. I've always spoken against everything she's said. We've always been able to let her comments roll off. At his wedding we were all informed that part of the Jewish tradition is the couple goes to a room and is alone for a short time and to not interrupt. I'm assuming it's to have sex? Idk. My mom was told this. The wedding was nice. I did the photos. My mom had been good. Kept her comments to herself. My step son and son in law went into the room and my mom left her purse in that room and they had her cigarettes. I told my mom not to go in there. They're probably doing something you don't want to see. They will only be in there like 20 minutes. She decided to go anyway. Luckily they weren't having sex. My son in law completely went off on my mom and my step son tried to calm him down. My step son is really upset that he interrupted that moment and it ruined his wedding. My mom finds that dramatic. I feel bad because my step son hasn't reached out to talk since the wedding. My mom won't apologize because she feels she did nothing wrong and they're overreacting. Should I continue to give them space until he calms down?