Mom refused to text because talking is better, months later wants to send a letter

I've been NC for a couple years but kept a line through Facebook in the (delusional) hopes she would come around. A couple months ago she sent me a message saying that she wanted to discuss further as there are things she hadn't addressed. Went through this whole ridiculous game where I had to reiterate what I've been saying for years, that I prefer messaging. Finally, by the end of it she told me she couldn't communicate effectively by text.

Realised that being right and winning to her was more important than having to put in 1% of effort, so finally just blocked her on Facebook. I'm still in touch with my dad though and he recently told me he needed my address so my mom could send me a letter - 'if I want.' Wow, thanks for moderately thinking of what I might want or not want /s

Genuinely just so annoyed. I live abroad, so it's much, much harder to send a letter. I feel like it's just another way for her to be a dramatic hero/victim. She can tell everyone she tried soooo hard, even sending a letter abroad! How caring/thoughtful! And then I'm left with a) answering a letter which will take weeks overall and be much more difficult/time-consuming than a fucking text or b) not responding and she can be the sad victim once more as her mean daughter ignores her thoughtful letter.

Thankfully, got around it by saying that I'm moving and here's my email. She hasn't sent anything so far so now I get to live in anxious anticipation of whatever new bullshit tactic she's going to try next. Frankly, am considering blocking my dad after this or telling him not to mention my mom again. Like I had two full months free of her dramatic bullshit and just feels like I got sucked into it all over again.