Discovering that friends deal with these same issues helps us to accept the events, of course. Our siblings (and spouses, sometimes our children) will tell us that we are "making things up" or "imagining" the slight, but what they likely trying to say is that our perception of the events may be skewed. We take more on that we need to.
It's not "all in your head." Or is it?
Did he specifically say that that was the reason?