I think the time has come for a discussion, not another trip. Sure, they do seem to bring you closer but right now you need to let her know that you need more than crumbs from her and then tell her as specifically as you can what you need from her. Let her know that you need an apology and not some tacked on excuse.
She thinks she is ashamed, WTH??? Sorry that is not any kind of apology. Heck I think I have told you sorry more times in the year that I have known you then in the whole time she has known you. Maybe something that didn't bother you before, but it does now. I realize that it isn't a conversation that you are looking forward to, but you have to get to it someday. Why not now before YOU fly the coop?
kat
Me-53(and learning!) S24, S21, D18, D17 Just keep swimming, Just keep swimming. Dory