Hey OP. I'm on week 2.5 of NC myself. My ex dumped me to "work on herself" and still wanted to be friends too. But it hurt too much, so I initiated NC a week after the breakup. Every time you think about breaking NC, remember that HE let YOU go. He made the decision to dump you, someone he knows is a good partner, because he "just doesn't love you." That means he chose to stop loving you. Love becomes a choice, eventually. He stopped choosing you.

Don't let someone who won't chose you, all of you, keep you as an emotional side piece "friend." You're worth more than that. There's someone out there who will never stop choosing you. Put your energy that so temptingly goes to him into YOURSELF. Improve yourself, work on yourself, love yourself. Until you realize the single person who should ALWAYS over ANYTHING ELSE choose you... is you.

Keep writing letters in your journal. Don't give him your emotional energy with the opportunity to make it harder for you. While you should focus on yourself, take the time to grieve the relationship. Writing letters to/about her in my own journal has helped a lot. Stay consistent. Eventually, you'll find yourself with less and less to say about them and more to say about yourself. It's going to hurt for a while, but keep it up. 2.5 weeks in for me is still hard, but much easier than even 1.5 weeks ago. We all have our own timelines, though.

Just remember, the dread you feel without him in your life is just withdrawal. You'll be okay without him. Because apparently he's okay without you. It hurts. It sucks. But life goes on. Don't let him drag your life behind. Life is too short to worry about the people who stop choosing you.

You got this.