honestly, that was decent advice? Like just go spend more time together
They already spend a whole lot of time together, so . . . .
But yeah, decent advice, given the friends don't know what kind of relationship the two of them already have.
Frankly, all she needs to do is be vaguely sane around him, and engage with him mostly as a friend (with some flirting thrown in to make sure he doesn't forget she's interested in more than just friendship) - she needs to get runs on the board as a (human) friend rather than as a cute kitty, and it'll all probably just fall into place. He's clearly not
against the idea of being in a relationship with her, he's just not sure about actually acting on it - if she doesn't manage to drive him away she's good to go, she just needs to be patient.
. . . of course, "be vaguely sane around him" is a bit of a challenge for our cute little Mi-chan . . .