Search Results: no contact to get a guy back

I used to date this guy for 8 months and I was crazy in love with him and he took me for granted. So, 5 months fast forward I see him and he was surprised to see me and at that moment I realized all my feelings for him have vanished. It wasn’t even interesting listening to him or talking to him I tried to be polite. And this morning he texted me and said it was nice seeing you yesterday. He never had my contacts he must have gotten my contacts from one of my friends. And I just don’t want to lead him on so I didn’t reply. I don’t find him physically attractive anymore he stopped going to the gym. We used to be fitness partners and always workout. When we stopped seeing each other he would text me and say I stopped going to the gym and I would try to motivate him to go back but he would say it’s not the same anymore we always worked out together. I want him to be happy, I want him to get back to his routine and start working out and dating again. Ever since we stopped seeing each other he would tell me over text that he only plays video games all day and doesn’t hangout with his friends. He used to travel and be adventurous, hang out with friends. I feel bad because I feel like this is my fault. And the look on his face when he realized I have no feelings for him he got defensive and sad. He realized he lost me.