End No contact?

We have been apart for over 30 days now. I started NC after I was extremely desperate for one day. NC has gone on after that for over 30 days as well. She started hanging out with another guy just barely 2 weeks after the break up (we had been together for over a year and a half). I think they might be dating, I’ve seen them together more, but I don’t know how serious it is. I’m afraid that I’m waiting too long. Even though I’ve made major changes in my life, I still worry. I worry, what if he’s better for her than I was, because she didn’t see how much I truly loved her. And what if it leads to me not having her in my life whatsoever.