What do you guys do when you’ve protected your peace so much that you actually end up lonely?

Honestly I feel very happy that I have my peace now and I understand my self without needing anyone else. But sometimes I just kind of get lonely seeing other people having such deep intimate relationships with others.
I miss the feeling of having to tell someone what happened in my day, what I ate, my interests, or just having someone to exist with, I just miss my best friends but I can’t bring myself to approach them again, I can’t even make new friends now not because I’m not interested, it’s because I’m afraid that I might lose them again one day, and I hate the idea of getting attached.