I can't Believe My Ex Husband Husband's did this

So I am currently 36 weeks pregnant with my 3rd. The babies father isn't in the picture anymore. He was cheating in me non-stop, and left once I got pregnant. Now my kids were over there dad's and stepdads house (Their father is pansexual). I was so sad I wouldn't have a baby shower because if everything going on. I look at pictures on Facebook at how happy my ex is with his husband, and I'm happy for him. But I'm also sad that I thought I had love and the person just cheated on me. Well my son messaged me saying they needed to be picked up for some reason. I got in my car and went to get them, but the car wasn't there. I called but no one as picking up. I was starting to worry. I drove back home and almost had a heart attack. My two kids, ex husband and his husband where all wearing masks and gloves and had several presents on the table. My husband said it was Liam(his husband's) idea since I couldn't have a baby shower. I cried. I took pictures (but literally the next day dropped my phone in the toilet, and it's sitting in rice FML). Honestly I truly realized how good friends my ex and his husband are. When I get the pictures I'll post them. And it's good to not feel so alone.