[flashback to Ted talking to Lily, Barney and Robin about Zoey:]
Lily: Are you sure it's love?
Ted: Remember the ketchup bottle? She wasn't the one who dropped it. When she reached for it, our fingers touched, and... I knew, right in that moment, this isn't friendship. This is love.
[present, Marshall on the phone with Robin:]
Marcus: Wuss.
Marshall: Marcus! This is a private conversation! [to Robin] So what'd the wuss do next?