Like I said. No reading comprehension. They can literally confess, say I love you and lets stay together forever and it's still not enough.
There's a long history in anime and manga of two female characters telling each other "I love you," after which one or both hook up with a guy anyway. The issue is what happens after they say it, but this story just ends there. To me, that comes across as "so close, yet so far."
I'll also keep it at that. Yes, I'm annoyed, but hey, there's so much more to read out there.
In those stories, one of the female characterst never ask "are we lovers now?" afterwards, and to put that in a manga where homosexuality have a big topic, is just stupid if your goal was to make them best friends at the end. Because everyone would think they are lovers.
Plus, after reassuring her that it was ok to be lovers even tho they would'nt kiss and do other lover stuff, you could see on their body language and with the context of the scene in mind, i think its really farfetched to say they are just best friends.
Also, you can be lovers without having any skinship.