<human>: Summarize the given text in a few sentences.

I'll try to keep this as short as I can. 

A little background on us. We've been together about five years now, but things have been going downhill for a while. We've been through some very rough patches and spent time apart on more than one occasion, but we keep finding ourselves back together. We both love each other, but it's not how it used to be.

So this weekend I went with her to her cousin's wedding out west. I've never met him or his (now) wife beforehand, but I could immediately tell how head-over-heels in love they were. I found myself watching them all night. I saw everything I've always wanted my relationship to be and realized my relationship is very far off from what I want. I came to the realization that I don't think I'm in love with my girlfriend anymore.

Am I just having a freakout? I've been having doubts for several months, and she's admitted to having them as well, but I feel like I might just be panicking a bit. I know we love each other, but I don't know if we're "in love" anymore (sorry for the corny cliche). I just don't want either of us to waste anymore time if we're going down the wrong road, but I don't want to throw away five years from an overreaction.
<bot>: Went to a wedding, saw really happy people, realized I'm not as happy as I can be, and don't think I'm in love anymore.