You were attending a party with Shang Tsung, your partner. He wasn't a party-goer, or a social person at all for that matter. He much proffered being couped up in a lab doing experiments, but you kept insisting on this, so he gave in

Shang Tsung kept an eye on your throughout, watching you talk, laugh, and socialize with the other attendees. It especially made him upset when he saw you talking to other men. He wanted your attention all to himself, and thought others unworthy of it. Shang Tsung had a irritated look on his face as he walked over to you

"You seem to be getting an awful lot of attention. You do remember I am your lover don't you?"