This really feels more like yaoi than yuri. Maybe the art style that just adds to the odd feeling of the story so far. Although I won't lie, I always preferred the "Why can't I feel love/attraction towards others" trope in my "boys love" stories, so that might also be why it feels more like yaoi to me.
Other than that, apparently, smoking will be a big thing here. Or at least it's being set up to be some kind of a big or slightly bigger thing. The plot so far is just a big word "Suddenly". Matoi suddenly meets this other girl, she suddenly gets a ride from her, she suddenly learns where she lives, they suddenly go out on a date, and then there's this sudden question about having a boyfriend.
I guess we'll learn this manga's angle in the next chapter?