Demand an explanation

"Then what is it?"

"I-I can't explain it." Tanya retreats.

"What do you mean? You brought me here. And now you just back out?"

"I...this was a mistake. Sorry, Liam."

"Sorry's not good enough. Tanya, what's going on? Please. Tell me."

Tanya hesitates, stills, looks down, and talks. "I'm engaged to someone else."