What I can't fix is the betrayal part of it, all I can do is explain where I'm coming from.
Be careful with the explaining. Every time I've done this, my W took it as me blaming something else, or justifying my actions. Make sure that you really own it and there's no room for confusion....and actually, I think it's a lot easier on you to simply say "I screwed up, and I'm working my tail off to understand it in my mind so that it never happens again." If you give them too much info (i.e. I didn't feel loved), then all of a sudden it takes a tangent and you end up defending yourself.
I'm not sure that's what you meant by "explain" but just in case, I'll leave it.
