So I must of been nothing more than an attachment?
It's not nothing more than an attachment to a borderline bus boy, it's everything. Someone, like a borderline, who doesn't have a fully formed self of their own, looks to attach to someone else, psychically fuse, to create one person out of two, to allow them to feel "complete" and "whole". Problem is that's an inherently unstable situation: where do you draw the line between the two? For a borderline there is no line, you're one person, very difficult to deal with for an autonomous partner with a whole self of their own, plus, once the attachment is established the opposing fears of abandonment and engulfment show up, so someone gets too close, push them away, to far away, pull them back. That's the hell a borderline lives in full time, and the motivation for coming up with all the psychological tools to deal with it, like telling you you didn't know how to be a husband, which was likely projection, she didn't know how to be a wife, because that would require being an autonomous individual with a whole self, which she literally could not do. Standard borderline there, apply as applicable, and she couldn't articulate what's going on with her like that, she's not consciously aware of it, but the attachment focus is at the core of the disorder.
But there's what happened and what we make it mean, and what we make it mean is most of it. How's your detachment going right now? Do you see yourself working through stages and making progress?