yeah of course, looking back the whole game with a realistic sight... nothing is realistic here ^^
The Jill Relationship is of course a fairy tale, but it works... its of course not realistic in any way... but the building up of feelings are obvious for both, Jill and the MC... to me its clear, both are very deep in love at this point, no doubt about that. So this is working. Just like overly romantinc movies... nothing there is realistic, but it catches the feelings, and is kind of working for the audience. So is the Jill relationship so far.
For Bella... her feelings for the MC are very obvious at this point... it was a struggle to win her heart, but the MC got it, completely. Her small smiles if the MC is a bit goofy and her reactions when there is body contact, its priceless and way more than just attraction. Its passion, and yeah... on a way to love. Especially if you see her reactions when the MCis making some really nice things... starting with painting her fence, than comforting Cathy or later on saving the recital, Bella shows instant how much that means to her and thats how the MC wins her heart over. But of course, the Bella-ride will be a very bumpy one, she is clearly suffering and once revealed what is really going on, there will be big time drama.
But for Sage... there is just no spark at all.
I overall like her storyline. And i would say there is a serious relationship that could work out at some point. But at this point not even close. It is just way to early to settle for a serious relationship between the MC and Sage... there is no foundation whatssoever at this point.