Okay reread it all, but still pretty confusing. I'm trying to focus on the ufo toy symbolism but the end is still kinda unclear. I guess what's confusing is whether the toy represents Yuu or the feeling of love?
Emi tries each day to pick up the toy (understand love) but puts it off because she doesn't actually want to deal with them (or take the next step and take Yuu for herself). Yuu knows this and gets the toy which means she's set herself free from Emi's control over her life and gives herself to Emi to make Emi face her feelings of love.
But then Emi still says she doesn't understand and that Yuu getting the toy was payback? Does payback just mean "because you never considered my feelings, I'm gonna ignore yours?" Or maybe it's like "I've been moving at your pace this whole time, so it's time you follow mine?"
I said I thought Emi is asexual but does Emi actually hate kissing and still doesnt understand love? Her words say one thing, but she looks shy and is blushing which is usually seen as actually "enjoying it" in manga. Emi also looked concerned about "holding hands for any longer" and at the end Yuu holds her hand and Emi is blushing there too. Is this a good end? Are they together now?
Jeez typing all that out gave me a headache. There's too many ways to read it imo and there's so much conflicting actions and emotions that makes it frustrating. Maybe author note explains it all.