not a word x
It had originally been your idea for her to cuckold you, but she had agreed with the idea right away, which really surprised you. And you had never thought that she would choose your best friend to be the one she would first cuckold you with. So yes -- you were feeling real pangs of regret now, and you were intensely anxious about the changes that were about to occur in your relationship with her -- but now that she has started down this path, she is eagerly committed to following through, so this will be the last picture you will have of her as a faithful wife.
"So there's really no point in you even trying to compete with him, hun. You're just going to have to accept that from now on, I'm going to be at least as much his as yours. It just makes sense -- right? Any girl in my situation with him and you would do the same -- or would maybe just dump you to be with him full time."