I have "fallen out of love" twice. The first time I was wish him for 6.5 years, and our relationship wasn't going anywhere. We had a really rough relationship though, and I won't go into details, but one day I just woke up, and realized I was done. It didn't hurt to think about leaving him anymore. I know that to this day I still have love for him, but I am not in love with him any longer.
The second time was here, just a few months ago. We were together for a year and a half. Our relationship started off really rocky, we broke up, I moved 3,000 miles away (long story), then a few months later decided we wanted to try things again. We were absolutely amazing, we knew that we had the potential to be something absolutely amazing. I decided to move back home, but needed to save the money.. Two months later I was on my way back home!! When I got home, things were absolutely perfect, the way I knew love and happiness were supposed to feel. But then right before Christmas, he started to change. Was distancing himself and acting weird. I was pretty much living there, but only going back to my house maybe once or twice a month.. I went home 2 days after Christmas, he blew me off on New Years. I tried figuring out what was going on, I tried fixing it, but one day I woke up and realized I couldn't be the only one trying to fix the relationship. So I stopped putting in the effort, stopped texting him first. It hurt for a while and it was really hard. Two months of this and I was fed up. Hadn't seen, nor heard from him in almost 2 months. I told him we needed to talk, so we made lunch plans. Then he blew those off because I sucked the life out of him when I asked at 3pm if we were still on for lunch. I called him and ended things right then & it didn't bother me at all.
So, maybe he "fell out of love" with me, then I fell out of love with him.. who knows.
But honestly, I don't think you can just wake up one day and no longer be In love with them. I thought about this the other day. I have had some very strong love for people and the two men in those relationships, but I do not believe that I have ever been truly, head over heels, in the unconditional love that everybody these days swears they are in.
Sorry about the ramble!!