<human>: Can you give me the gist of the text in a nutshell?

I broke up with my boyfriend of 5 1/2 years about a month ago. I had always thought that if someone wasn't 100% sure they wanted to be in a relationship with someone, then they probably shouldn't be. I was questioning my feelings for him for a while and finally decided to do something about it. He really wanted to "fix" things, but for me there wasn't anything to fix because I didn't feel in love anymore. The passion had escaped our relationship quite some time ago-- we had sex maybe one time every month. I kept asking myself: if my relationship is already like this when we're so young, what's it going to be like later? Post breakup, it didn't really hit me. If anything I felt relief, but no sadness. Now about a month after the breakup, I keep thinking about how I miss him. I can't tell if I just miss the idea of us, and how we were so close to getting engaged and starting our lives together, or actually want our relationship back. I'm sure he wouldn't want to talk to me anymore because I broke his heart, which is probably for the best. I can't help myself but to search his Facebook and Instagram because I'm curious what he's up to. I know that I wasn't happy before, so I am trying to ignore these lingering feelings. I think I am having them because we were so comfortable and he was a large part of my life for such a long time and it's finally hitting me that I won't have him in my life again. Everything is reminding me of him recently. Reddit, how have you stayed firm on your breakup decision? How do you refrain from looking at your ex's social media accounts?
<bot>: I broke up with my boyfriend of 5 1/2 years about 1 month ago. I am starting to miss him, but know the breakup was for the best. How can I get past these feelings and stick with my decision?