Art's still great, but god do I hate the secret couple trope. I've dropped a fair few manga just because of it. Hopefully they'll reveal it soon and its just there so we get to see the friends' reactions despite the premise of "they've already been dating for a while." ("They knew the whole time" would be fine too.)
But do they have to pretend they don't even know each other? I thought they were supposed to be friends since, like, grade school. How the rice do their friends not know about that? Like, "Oh, her? Yeah, she got pancaked by a eighteen-wheeler a few years back. That's just a totally different girl that has nothing to do with her but happens to look literally the exact same. Anyways, wanna go get some pasta?"