Being guilty doesn't change what happened. It doesn't undo what happened. It doesn't make things better. It doesn't rewrite history. It doesn't protect you against it happening again. It doesn't really have any influence over factual reality whatsoever.
So guilt is always just this 'sideline sob story' which is running alongside what's happening, but isn't really having any real connection to it.
No amount of guilt will make up for any sin or mistake or error. Guilt is actually designed to KEEP the mistake and pout about it.
Guilt is the ego's version of atonement, which says that something happened and it was judged as wrong, so now in order to atone, you must feel guilty and ashamed. You must feel this way because of what you apparently "did" to others that was wrong. And because you think you did something, you think they must therefore be mad at you, and must therefore be condemning you, and therefore you must be condemned and should become guilty to mirror that. "Appropriate guilt" is bullshit.
The only offering that you can give to someone you have seemingly 'done something to' (which is impossible by the way), is to get out of guilt and revert to love. And then you offer love as TRUE ATONEMENT in recognition that nothing has really happened. And if the person does not WANT your love but instead wants to pout and be a victim and keep the story and remain offended and are still adamant to use you for a skapegoat, then LET THEM but know that it's their choice and nothing to do with you.
Guilt doesn't change anything. It doesn't help, it doesn't repair, it doesn't atone, it doesn't make up for anything. It's completely useless and worthless and meaningless. The only purpose for it is to signal to you that you believe something that is false so that maybe you will question whether you are guilty.