How we handle insults, intended or otherwise, is important, and may lead to “content” for contrition or confession.
If you deliberately nursed resentment following this “insult” and relived the event over and over, I’d take that to confession. This is a misuse of your memory. You are not using all your mind to love God and others.
If the reason you felt insulted is because you have a high opinion of yourself…well maybe that’s another thing to take to Confession.
Better way to handle it might be to smile and offer up the offense for…the persecution of all Christians in China, the reparation of all your sins, for the unborn, for the mothers of all children, for greater generosity of all fathers, for the Holy Father’s intentions, or a million other intentions.
When insulted, injured, convert that event into an “opportunity” to join your pain to Christ’s pain on the cross.
So the day becomes a source of hundreds of potential opportunities to meet Jesus.
Just a proposal.