My theory is that mc's ex got a loan from ml father and ml got to know about them bc of that. Than he started to follow both or just mc and he hot curious of her and than boom kiss kiss fall in love.
Then*
Wow, that actually make sence, thanks for the theory!
That would definitely explain a lot of things. So then I guess the next question is what made him really start to really like her and when did the shift in feelings happen?
I love that our ml is doing all of this wonderful stuff for our mc, it's great! But I'm honestly more curious about why he's doing all of this. Why is he so interested in out mc????