Did Taylor and Ed make a marriage pact?

Taylor Swift and Ed Sheeran are definitely close in fact, Taylor told the crowd at a recent concert, "Ed's genuinely one of my best friends!" But they're moving to the next level if neither is married by age 30. "Ed and Taylor are very close, and that's why they've jokingly discussed the possibility of getting together if they're both on the market in seven years time," a source says.