Dick pics.

My husband has another daughter who we usually get Sunday night well she decided she wanted to stay with her mom tonight, my husband has ALWAYS said it's up to her(the child) whether she comes over or not. Well I was at a birthday party and came home to find him drinking with our 6yo son in the house because he was "so depressed" That his daughter wasn't coming over. Well his best friend called me earlier and asked to speak with him when they got off the phone I asked what it was about and he was like "oh he was just bitching about work and his wife as usual" And I was like oh🤷🏻‍♀ okay🤷🏻‍♀ because it's a normal thing for this friend. Well said friend called be back about an hour later to inform me that my husband had sent his wife dick pics, not 1, not 2 but 3. 2 of which were taken in our car. All of which my husband took to send to me. When I confronted him about it he was like "maybe try making sure it's actually my dick" Which it was because the friend sent me the pics along with a screenshot of the conversation with my husband saying "just drunk and want to see you like bad". We have a 5m old daughter and I literally don't know what to do at this point.

Edit;

The friend called me through Facebook and the pics were sent through Snapchat.