Please don’t let it become a thing that remains to bother you. It’s not actually a big deal.
Many things matter more.
If he were to see that it bothers you, it could make him uncomfortable …because why is she so keen to make physical contact?
It isn’t necessary!
If a person chooses not to shake hands then no one has the right to to impell them or to expect it.
Many of us don’t make a point of either seeking to shake a priest’s hands, or even giving the matter a thought. I seldom shake hands with people anyway. A greeting is sufficient.
It doesn’t even enter my head to expect or wish to shake a priest’s hands, or anyone really. I greet a priest, or anyone, in a generally friendly manner. I doubt I’m alone in this.
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The origin of a handshake is to show you don’t have a weapon in your hand.
God bless you with peace.