It's Valentine's Day on How I Met Your Mother and what better way to celebrate the occasion than to satisfy Barney's insatiable quest for hot women and argue about the fine line between love and hate. This week's episode kicks off with a quick follow-up to Barney's Super Bowl stint in which he was holding up a sign with his phone number that says "Call Barney Stinson." That little stint he pulled evidently transformed his phone into a magical phone--- one that rings incessantly because an infinite number of chicks are trying to hook up with him.
It looks like Barney finally got what he wished for. The only problem is he's having a hard time settling with a girl when he knows that there may be someone hotter than his date. So he picks up the phone and leaves behind the girl before he can close the deal each time.
Eventually Barney decides to get rid of the magic phone since it's making him crazy. But Lily and Marshall manage to find a pretty good use for it as they use it to look for a girl to set up with Ted on Valentine's Day. You see Ted has asked Lily and Marshall to fix him up for a blind date after being inspired by Ranjit's arranged marriage story but they forgot about it. What Marshall and Lily didn't know is that Ted had already found Barney's phone before going on the Valentine's Day date and now he's pretty much hooked just like Barney.
Meanwhile, Robin heads to the party of her coworker Don, whom she claims to hate, for Valentine Day only to discover that he's done the Naked Man seduction trick. It doesn't work on Robin, though. If you recall, this trick only works two out of three times. However, she eventually sees him in a different light after he apologizes not just for being naked, but for all his past actions and for not treating her with respect. In the end, it's safe to assume that Don goes from being a rabbit (someone she hates) to being a duck (someone she likes).
(Image courtesy of CBS)