Personally, if I find myself triggered by other people's reactions, what works best for me is to just put some distance between myself and the situation until I can center myself a bit.

I've found when people are silent about things, it is much more about them than it is about me. Something is going on with them and I just need to allow them the space to work that out for themselves. Yes, it is hard to feel ignored, but if I can reframe my view to realizing that is their stuff and their issues, not mine, my anxiety and anger about feeling ignored usually disappates.

Sometimes I don't have to be heard by anyone but myself. If I can be right with myself and how I am feeling, that is enough. A little space and time usually can get me to that "right" place within myself and then that urge to have other people have to hear me really isn't so strong because I can make my own peace with things.