So I don't usually do the whole 'Mysterious Melody' thing and after misreading the link accidentally signed up for that instead of grabbing the day's random gift from her. I'm not sure if I'm just an idiot or if I'm screwed but is there a way to just... un-sign up for it? To leave? Because the whole thing has always given me a ton of anxiety and I'd prefer not being a part of it...

I'm sorry about it, but there's no way to un-sign :( I think most will disagree with me but it was an honest mistake and you seem very uncomfortable with it so just go silent or send 1 gift just to not be totally absent

pretty sure it matches you with someone for the day, but by tomorrow you'd have to sign up again to get matched with someone else. so just don't sign up again tomorrow and you're good. if you get matched with someone i'd recommend at least sending them a little something, like a cute sticker or whatever.

Send one of the Im Sorry Dog Plushies and something like

[item2=General Error Plushie] [item2=The Mistakes We Make]

There used to be a MM forum thread about sending messages to your partner, but I can't find it.