Why did Hagrid cry?

Answer 1

At the start, it is because she wiped her parent's memories and they no longer know who she is.

Then when Ron leaves, because she wants him to come back.

Its a pretty tough time, I wouldnt be surprised if she cried from the pressure of it all

Answer 2

She cries because she has liked Ron weasley for a long time but hasn't really shown it, and now Ron has met lavendar brown, whom he doesnt really like, he just likes her physically

Answer 3

Because she bewitched her parents so that they are safe but also don't know they have a daughter.

Answer 4

Hermione cries at the dance before the Tournaments begin when Ron starts acting cold towards her because she is Viktor Krum's date. Ron is grumpy because he likes Hermione, and was jealous.

Answer 5

Hermione overhead Ron telling Harry that it was no wonder nobody liked her because she was a "nightmare".

Answer 6

I guess he felt very sad.