How To Help Your Friend When Their Pet Dies-

Acknowledge Their Loss-

Acknowledge how great a loss they've sustained. Avoid clichés that debase the experience: "It was just a pet." Replace them with heartfelt sympathy. Say, "I am so sorry for your loss. I know how much [pet's name] meant to you." That acknowledgment goes a long way in validating their feelings.

Be a good listener- 
Give your friend room to talk about their pet and their feelings. Whether they would like to share happy memories or share their grief, your task is just to listen without judgment and not interrupt. Do not give them a lot of advice or try to "fix" their grieving; sometimes the presence alone is enough.
Supporting Them-

It becomes really burdening to them to do the little things in life. Help them clean up pet-related items, take care of errands, or even prepare meals. If they are not ready to let go of their pet's belongings, respect their wishes and give them all the time they need.

Share Memories and Stories-

If you knew their pet, share your own fond memories. A simple, "I'll never forget how excited [pet's name] got when we visited," can be comforting. These stories show that their pet was loved and remembered by other people as well.

Create a Memorial for them- 

Propose or assist in devising a meaningful way to memorialize their pet. This could include planting a tree, making an album of pictures, keepsake urn, or commissioning a small work of art. Memorializing the pet can bring closure and celebrate the joy the companion brought to their life.

Respect Their Grieving Process- 

Grief is not linear or on a timeline. People respond to the loss differently. Some individuals want to talk about the loss often, while others will need time alone. Be accepting of their process and allow them to set the stage for your relationship.

Recommend Seeking Professional Help if Required

If your friend seems in a deep state of distress and overwhelmed, then, obviously, recommend professional help. Great loss over a long period with a pet might trigger very intense grief and assistance could be a counselor or working within a pet loss support group.

Be There for the Long Haul

The pain of losing a pet doesn’t vanish overnight. Check in on your friend weeks or months after their loss to show you’re still thinking of them. A quick message or visit can mean a lot as they continue to heal.

Avoid Pushing Them Toward Another Pet

While coming from a good place, telling them, "Just get another pet" is very discouraging. Let them decide if they are ready to ever have another companion. Grieving the loss of their pet fully is an essential part of healing.

It's really very important to empathize, be patient, and understand a friend after losing a pet. Being present in meaningful ways could help your friend go through the pain of losing their beloved companion.