How did you know when they finally stopped loving you?

The title says it all, bit of a depressing discussion but I feel like you guys can help me to understand something. I (F28) was with this guy (M30) for 5 years, he was very loving, sweet and affectionate (everybody around us loved him and admired his attitudes). I could listen him say that he loved me everyday, and he never missed the opportunity to tell me that he appreciated me and my effort to make him happy. He was great with helping me to do the chores since I was working 8 hours a day and he was working 2 hours a day, he always said that he wanted me to rest and relax a little bit more.<br><br>He was changing a lot during the 3th year of our relationship but I thought that it was normal since he was in a bad place (he had lost his first girlfriend and baby some years ago and it's always hard to overcome this kind of pain). He was still very kind for me but he wasn't as much as he was in the past and I felt like "oh, he's definitely tired of this puppy love thing", so I accepted it and thought that things would be better in the future.<br><br>After some months he stopped saying that he loved me and I thought that it was nothing important, I asked him about it and he said "listen, I love you so much, I'm not sure why you're making a big deal out of this". It was weird but I thought that he was right and it wasn't a big deal. We were still having a sexual life and he was always helping me with the chores, so I thought that he still loved me even if he wasn't saying it anymore.<br><br>He had started to have a bad temper and it was affecting me in some ways, so I started to look for help, I was feeling hurt and tired, etc, and I started to look for help in therapy and with some close friends. I realized that his attitude wasn't normal and that I wasn't the guilty one, I was trying to fix things and make him understand that he was hurting me and some days later he broke up with me (it was like 1 year and a half ago). I'm still in therapy and trying to overcome my problems. <br><br>I know that love doesn't die in a day, it happens little by little. How did you know when they finally stopped loving you?