Are you unsure about dating someone you're not totally attracted to? What I'm hearing is that she's, well, sort of attractive enough for you.
He will, without much concern for your feelings on the matter, overwhelm you with needy gestures to win your heart, and probably call you a bitch when you finally lay it out for him that you just don't feel the same. This guy is a probably a friend of a friend who randomly took his shirt off at group hang-out indoors in the wintertime while making eye contact with you and you felt so awkward about it that you had to fade out from the entire group.
The sweet spot is the GOOD guy: the guy who will refrain from huge romantic gestures until he knows you well enough to include an inside joke on the card that comes with the flowers. He's not infatuated with you or maybe he is, but that's only part of it ; he's in like with you. He sees your qualities as a person, not just your winged eyeliner skills, and that's why he's he's going a little crazy.