Personally, I think it's a convenient way to get around really explaining your emotions or reasoning. Thoughts?
Girls, you know exactly why you rejected that guy right?
Most Helpful Girl
I think it's a combination of both. Maybe they are off putting, or you want too different things, and the spark isn't there. It's just a feeling you get. You're sitting with someone, and you're not happy talking to them, you aren't connecting, you just are not feeling it. The reason the spark isn't there is because of those things. You're too different, they are off putting, they hate everything you like, they seem completely uninterested in listening to what you have to say. So you feel... empty towards them, there's nothing there.
When you meet someone who just instantly makes you smile, the way they talk makes your heart beat faster, the way they walk, the way they listen, the way they care. That's the spark. The spark is not just a saying, or an excuse, the spark, is that feeling you get when everything falls into place. That feeling when everything you didn't feel with other people, everything the other people did that annoyed you is just gone, and this person, this one person, is everything you want and more than you even knew you needed. You just feel the spark, you just, know you want to be with them.