So what happens when Tokio starts losing interest? He's only human. He can't keep doing this forever, as much as Chita would probably like that to be the case subconsciously.
Personally I would prefer for them to not end up together, but I'm more interested in what the author has planned for this pair.
I mean, in one way i do feel bad for her, having someone who has been a close friend for a long time coming out saying they love you(though he hasn't really said it, just heavily implied it i think?) is not fun if you're not feeling the same way towards them. That will also have you doubt how much of your friendship was actually real or how much of it was fake for them just trying to get with you. I've had that happen myself and that ruined our friendship, specially since he refused to accept that i wasn't actually gay or in love with him lol.
And to then also feel "forced" to start a relationship just because you dont wanna lose your friendship just wont turn out for a good relationship anyways. Though i can see that this may turn out to end in a way that she just doesn't wanna lose him as well as she did her friends(lol) and then somehow realise she actually loves him, which idk... meh.
But it also kinda annoyed me a lil bit that she seems to have known for a bit that he likes her but just kept dragging him along pretending not to know or whatever.. Or maybe waiting for him to come clean about it.. I feel bad for both in this situation.