Why guys like this movie
I'm a 26 year old straight guy and I just saw this for the first time the other night and thought it was a really good film, and it strayed away from other Romantic comedies as I usually don't like those.
In my opinion this movie reminded me a bit of How I Met Your Mother, where as John would be Ted obviously.
Most guys can connect to that kind of character because we have all been there. For me anyway I want to find that girl that makes me crazy and do insane things to find her. When we see a movie like this it makes us feel like we're not the only ones who think this way. We don't like to admit it but we all want to have that chemistry with a girl like John & Sarah did in this film.
It wasn't your average Rom Com, where they get together and then fight and break up just to get together again. It was different, the whole movie was about them getting together, and doing whatever it took to get to that point.
I do feel the girl's side was a bit unrealistic as 99% of the girls out there wouldn't do this, especially ones that look like Sarah. Now-a-days if a guy would to do this, they would be considered creepy or a stalker, which kind of sucks.