You really care about this friendship. Is there any way you can get her away from her kids/responsibilities for a few minutes and explain how much regret you have, and how much you want to continue being her friend? The situation is compounded by the fact that you're neighbors. If it was anyone else, it would be easier to just move on and leave the relationship. The fact is however, that you can't always hide out in the corner of your dining room so you don't see each other. You'll be outside this summer - they will be outside this summer. There's no avoiding the inevitable. You still have to be neighbors.

The thing is, it may end up from her side that she never wants to see you or have anything to do with you again. In your mind, that is the current situation and therefore you have nothing to lose by trying to talk with her. She may scream, throw things, hit you, whatever. All that is her right, you did fu.ck her man. She may never forgive you for that, and you've already accepted that. You are presently in the worst possible situation and have to live with your regret. She has to live with the betrayal. Those are things that may never go away, regardless of your relationship going forward. She is also dealing with it from two sides - she has to live with the fact that her man fu.cked you.

That being said, the only possible thing that can happen is for things to get better. Those wounds will always be there. The fact is though, there is the possibility for things to slowly scar over. They'll never heal completely, but they will diminish in importance as time goes on. Unless you have any designs on her man, she may be willing to be at least social with you for a while. It could start with a "hello" across the street, or you could have that serious discussion.

Things will get better. The healing starts with the distance that time from the incident permits. Since you're not in communication with her, you don't know what she's thinking and feeling - and don't take things said in the heat of the moment when she found out as gospel, since now she's had time to think and process the situation.

I'd suggest you live your life to the best of your abilities. Stay far, far away from any situation which could even hint that a similar situation could occur - don't take shots and go over to her yard when her guy is around.......you get my drift. I'm sorry you're in pain. Time will help. Talking helps. And we are here to help as much as possible. I wish you the best.