Falling out of love is tough. But realizing that your partner has fallen out of love with you? That really hurts. And it can take so many different forms. "I think the idea of falling out of love is a bit more multilayered than it sounds at first glance," relationship therapist Aimee Hartstein, LCSW tells Bustle. "Relationships take work. The idea of two people falling blissfully in love and always being exactly attuned to what the other needs is very unrealistic. I believe that people can fall in love with lots of different partners. If the chemistry and the connection are there then there are different opportunities to build a relationship. However, one of the best predictors of a good relationship is how hard both parties are willing to work at things."

And sometimes, the compatibility just isn't there — or the desire to put in work. Sooner or later, it's going to show. In an AskReddit, folks shared their experiences, the moment that they noticed that their significant other wasn't in love with them. I have to tell you, it's depressing AF. Like, really depressing. It's not nice seeing the moment that relationships fall apart, but it's also really eye-opening. Here's what they had to say.