How I Met Your MotherSeries 8 Episode 15: P.S. I Love You
Marshall and Lily become concerned that Ted's new girlfriend Jeanette is a deranged stalker, but Ted insists that their meeting is simply the result of destiny. When Robin admits that she was dangerously obsessed with a mystery man when she was a teenager, Barney heads off to Canada to track him down.
- Original air date