I’m sorry for the loss you’re both facing. It’s hard but sometimes the only thing you can do is give them space to grieve. Grieving is never an exact science for people, and will always feel different. I’d be open and just ask what they need. Be engaged but not too overkill. Comfort as needed and give those other furry family members love. Play with them, engage, take pictures and videos, show them to your partner. I’m sure the other pets are feeling the loss to some degree too, and comforting them can be mutually beneficial.

Something I’ve done is create a picture book with the best photos of that pet. Give it some humor with captions, make it something that can carry the memory of your furry friend outside of your own brains. It can help with the grieving process and also give you something lovely to glance at when needed.