I am I the only one that sees a big similarity between Buffy/Angel and How I Met Your Mother? (Besides Alison Hannigan...)
I think Buffy's relationship with Angel is really similar to Ted's relationship with Robin. Both pairings show intrest in each other at the beginning of the series, but decide they can't have a relationship. (Angel/Pilot ) Even though they have feelings for each other, they don't get together until a while later (Reptile Boy/Come On ). Sadly, both relationships come to an end (Innocence/Something Blue). At this point, it starts to bcome a little different... Buffy and Angel eventually get back together and break up (Amends and The Prom respectively) while Ted and Robin become friends with benefits (Benefits). Another similarity is that one person in the couple will start a new relationship (Ted with Stella and Buffy with Riley), but end up getting left (Riley rejoining the military in Something Blue/ Ted being left at the alter in Shelter Island) Later, the girl sleeps with the guy's "friend" (Spike/Barney). Lastly, both couples make a promise to each other. (Buffy's cookie dough metaphor in Chosen/Ted aking Robin to be his backup wife in The Front Porch).
Yes, I do realize that both couples are not going to be exactly the same, but I couldn't help but notice. Coincidentally, happen to ship both couples ;) If anyone else notices a similarity between the two couples, please leave a comment. :)