Your waifu asks you out, are you ready to say yes?
Yes
What if she asked you out on a long distance relationship To a degree a waifu relationship is like a long distance relationship, but it would always be a long distance relationship, forever, Would you say yes?
I don't think Miia herself would be ok with a long distance relationship.
But I would take it if there was something physically stopping me from going to her, like if our only form of communication was some magic inter dimensional window, even then I would get into the occult to try and get myself there.
Would you feel ready, as a person, to be in a dating relationship with her?
That's a hard one, I get panic attacks in crowds, and working nightshift and never seeing the light of day hasn't helped that, and Miia is the type who would love to go out to a nice restaurant, see a movie, go to some crowded festival and want to do stuff like hold hands in public and maybe even kiss someplace romantic.
I can feel anxiety in my chest just thinking about it, but I would pull through to make her happy, and enjoy our quiet dates more, I think she would enjoy a quiet night in as well
If you answered the last question with yes, what if she asked for your hand in marriage?
Oh hell yes, no hesitation