Narcissistic mother making the wedding about her

I recently just started planning my wedding. We’re still in the research phase, don’t have a date, location or anything settled.

I only told my mother a few ideas and every time the discussion ended in tears (her tears) saying I’m a bad daughter and I don’t care about her. During the last phone call we had, she made an inappropriate suggestion regarding someone from her line of family, saying they should be “part of the bridal party”. I only speak to them once a year and they know nothing about my life.

I declined RESPECTFULLY, not raising my voice, not insulting her, and then she started crying saying that I don’t care about her wants and needs and if I don’t do what she says I should leave her out of this wedding.

I burst in to tears when I hung up, because she’s my only family and I feel like I have no support for my wedding (from my side). I even thought I should make the wedding as she wants just to have peace, or not have a wedding at all. What does one do in this situation…