lacrimose
Someone who cries so much they might as well be a faucet with a broken lid.
My friend is a lacrimose. She cried at the end of the concert and I cried because I felt bad.
My dad is a lacrimose. He cried at the dog movie and I cried because I felt bad.
My teacher is a lacrimose. She cried during the whole class and I cried because I felt bad.