Sometimes people use meditation to numb emotion, yes. That doesn’t mean meditation isn’t a valid and useful tool. Some people use hammers to smash windows and cause damage.

Since you’re not really asking about meditation but about a particular situation with this teacher, maybe raising your real question in a different sub-forum would get you a more useful set of responses. It sounds like you’re having difficulty expressing yourself clearly towards this person:

when the message finally got across (more through my actions than words I suppose) […] I thought maybe I might explain why I was upset, and I suppose I even promised that I would, but…[…]

Better communication, focussed on expressing your feelings without making this person responsible for them and saying clearly what it is you want, might provoke a more satisfying response from them. Or it might not. Sometimes people will abandon you and you don’t know why. You may have to find another teacher.

I hope you find a good way through this.