You mean like when you said, "Because I enjoy talking about my Bills. There is a difference between discussing a game and wallowing in misery over a game. If you want to do the latter, be my guest. You have the right to do so. I also have the right to comment when I think it is a bit excessive or unhealthy."
So, now you're insulting me by saying "This might feel a bit nuanced to you", so an ad hominem. Okay. By telling someone their feelings are unhealthy is precisely the definition of invalidation. The guy just wanted to say how today is having an effect on him and you're telling him that the way he feels is wrong. Do you really not see that? I'm sorry, but I just don't like when people tell others that what they feel is wrong, especially when the wound is still fresh.