Is it normal for my friend not to cry?

Well unless you are with your friend 24/7 then you can't be sure he/she doesn't cry. Maybe he/she cries only when alone, and puts on a brave front.

It's probably normal but the one person I do know that doesn't cry ever is certifiably insane.

But I guess you can't judge a tree by the one rotten leaf you see.

My grandpa (my only living grandparent I've ever known) died last night. I was his favorite and he was mine, but I did not cry. I feel abundant grief, but no tears.

I love how you use the cat's death as a way of saying 'If he didn't cry then then he'll never cry in his life!' Lool but no this is normal...he keeps his emotions under wraps and doesn't want to let others see.

I hardly ever cry. I hardly ever feel sadness. Much of what most people would become sad over typically either doesn't phase me or manifests as anger instead of sadness.

everyone expresses their emotions differently

I don't cry much either. Whenever something terrible or serious happens, I end up laughing. People think I am being an imsensitive douche, but really if I am really unhapy, I just laugh. Not crying is very normal.

My friend didnt either when her cat died. She was just sad about it.

Just because a person cries, doesn't mean that he/she cares more than people who don't cry. I don't cry, but that's just because I don't show my emotions through crying, not because I don't care.

Not everyone cries.

Many people hold it in or have other means to express their grief.

It sounds like your friend really did care about the pet - especially since he or she is bothered by the lack of tears.

so that means your friend is normal and probably just grieving differently than expected

I haven't cried since I was about nine, I see it as normal.

I don't know if this makes a difference, but he was bullied for a while.