If You're Calling It Gaslighting, Make Sure You're Not Crying Wolf
Just because someone disagrees with you or interprets events differently doesn't mean they're gaslighting you. Gaslighting ONLY occurs when someone intentionally uses lies, denial, and manipulation to make you question your own reality.
Everything You Say Is a Lie. (At the Very Least, It Is Not the Truth.)
One of the most difficult aspects of teaching how to effectively communicate is getting people to accept that what is coming out of your mouth is not the truth.