Is it possible for a boy and girl to become business partners and work for long together

I doubt it. I can't speak from experience, but my guess is that the constant contact will lead to feelings of understanding and comfort that pave the way for deeper, more romantic feelings. It's hard to develop that with people these days.

It's possible they spend the entire time just enduring the tension, but the chances that they both turn down the possibility of romance is slim.

Bang bang.

Yes, I know a few. In one, she’s 65, he’s 32. In another, they’re both gay. In yet another, he weighs about 400lbs. In still another, she’s married to his brother. In none of those situations has anything romantic happened.