OP. The poster meant you are irrelevant to his future. Not that you are an irrelevant part of his past. There is a distinction.
Here's the thing: whether or not you are who I think you might be (timelines, reactions to what you don't want to hear and writing style fit to a tee), you have no space in that man's life any more. If there was space for you, he'd have got in contact a long time ago.
To the posters who made assumptions about my personality earlier: don't be so quick to judge.
The poster said her and the guy were still in touch when he met his fiancee. His ex would say that, too. Only the "in touch" part was her finding every excuse under the sun to contact him, including forgetting to pack a £1 potato peeler from his house. It was almost every other day at one point.
She then obeyed NC with him. His ex would say that, too, but leave out the parts where she just happened to walk past his road on a weekly basis, approached his family, got a hospital to ring him repeatedly (she was fully conscious) saying he was next of kin, and keeps stalking me online. Or that she tried to insert herself into an annual hobby event she knew he'd be at as a staff member. Or that she'd had previous form for doing the same to another ex.
You judged me by a single post to say I'm controlling, though none of the decisions to block her were on me. The point being he didn't want her in his life any more.
You judge one woman while believing the face value of what another says. Given the OP's reactions, there is definitely much more to the story than she lets on.