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A blond guy trying to catch girl sounds like Johnny Bravo
A blond guy with a vegetarian friend could be from What About Mimi? or could also be a mis-remembering of The Tofus... But in those last two the guy isn't the main character.
Anything else?
it's definitely not Jonny Bravo and I know it not the other 2 shows because of the animation style. also, i am sure the blond kid was the main character
any other information?
it was from the early 2000 and it had kind of a 70's vibe also was animated. the main character was this blond teen that came up with crazy ideas to get girls and had a vegetarian girl that was this boy's friend. i remember one episode were the boy in order to impress this girl from his school dug a pool and the vegetarian help him, in the end the pool was gross because it was just a hole that they felled with water.