It's creepy to continue unrequited affections.
David had met Mandy at a party where she was attending with her boyfriend.
David wants to tell Mandy hello.
David walks up to Mandy and asks her how she has been doing.
David rushes up to Mandy and gives her a big hug and kiss on the mouth.
Mandy smiles and talks to David for a while before walking on her way.
Mandy slaps David across the face and tells him to stay away from her.