Please help

My fiancé’s grandma died last night and it’s been such a hard toll on his family. He seems to be more reactive about it. I try and be there for him but it feels like I’m the last person he wants to talk to. He messages every one else except me. And idk what to do. I just feel useless and a day before that my moms aunt passed away which she was close to all of us. And I’m trying to let that slide and be here with him but it’s just not working. And feel like what’s suppose to bring ya together is just pushing us away. I’m also 27 weeks pregnant and just feel like a piece of shit. He wants to party and drink and not give two fucks about anything. Excuse my language. Please what is some advice.