missing him like a heart attack

So choir had just begun, and I sit in the chair behind Megan.

"Hey Megan!" I say, because I had only seen her for a couple minutes today. "Fancy seeing you here!" she replies. We talk for thirty seconds when suddenly she exclaims, "hey, you stole my phrase!" "What phrase?" I ask.

"'Fancy seeing you here!"

"Uh, Megan, you said that."