A: Most girls care at least a little about guys fashion because it is their first impression, so it might affect what girls think of you but that doesn't always mean in a bad way. A different sense of style and be creative and sexy as long as it is done correctly!
A: It's different for every relationship. I was in a relationship for 3 years and I was over it in about 2 weeks because I met someone else. But I know girls who have been stuck on a guy for a year or more.