At least we've averted the "three weeks of ignoring the conflict and trying to avoid it", although I didn't have "Oshiko has a command grab" on my bingo card.
So I think "I'm worried about becoming Christmas cake so I'll bully this mopey guy into being my bf" is a pretty safe bet for Oshiko's motivations at his point.
on a more serious note, christ! The line going from when we first met these characters to this point here and now feels almost inscrutable lol, I have no clue where things will go from here