I think, @qwerty68, in your heart you know the answer to this question, and I would say the answer is to connect with this person and explain your thoughts.

It won’t be a wasted effort, even if they don’t respond, or respond negatively. The important thing will be to make sure you don’t feel sad by a lack of response, or despondent, but rather accept that you have attempted to repair something that you felt was broken - and this is a really positive thing and something to feel proud of. You are a good person for wanting to do this, so follow through and do it.