You had the best hand and the chance to make the flush is less than 1/3. Therefore, you want everyone to go all-in with you! You probably raised a little too much ($240). The BB should have smelled danger and just called, and not attempted to scare you off with a big re-raise.

And the UTG guy is a typical flush draw caller. They are everywhere and they will be your major sponsor.

Remember these guys' name and play with him more. You will empty his pocket in the future.