Breakup (sorry bc is too long)

So, I was with my "boyfriend" over a year but I started treating him like shit honestly, so we beakup. Later the month I started missing him and feeling really bad, so I started looking for him but he didn't what to make up. Long story short he then wanted to get back together but I didn't. Later on I wanted but he didn't again. Lastly I talk to him AGAIN and ask him for one more change, to start fresh, and he accepts. I was so happy and he was too. He said to me a lot of things and even when we got in fights and I ask him if he didn't want to be with me he always responds that he did. On Monday I saw him and we were in his house, had sex... everything was normal. But on Wednesday I send him a text: "I love you so much" and he replays: "me too my life". I didn't replay because, why? he love himself too?. Later I said too him that he was acting strange and that why are we a "thing" if he keep acting like that. And he replays me saiyng that he tought that getting back together would be a good thing and that it would make him fall in love again but that things didn't go as he tought, that he doesn't care about are relationship, that he never miss me, that he thinks is better that we breakup again and that he has been feeling like that for a time but he didn't want to tell me because I was in love. I'm so heart broken. I tought that this time it was going to be the one. Everything was so perfect, and then out of nowhere he said that. I don't know what to do to get over this breakup. Please help me!