Well... Vengeange is not an option... Everyone deserves a second chance, people can change

I would base it on whether I liked him or not. If he is actually a cool guy then don't worry about the past and be friends.

See how good of a friend he could be. Maybe he will be your best friend for years. Don;t judge him too early.

IF this guy was one of the ones who ignored or was mean to you, I would forget him. You obviously have a lot to offer the right person, so why bother with someone who could possibly be petty? Wait until someone comes along who really floats your boat. A man who sees inner as well as outer beauty is a keeper!

Well here's the thing. Do you want him to be your friend? Getting revenge for things that happened to you before won't make things better. You are way cool for that. You know better. Be friends, and let him know how wrong he was for doing that by accepting him totally without condition. Remember the golden rule - Do unto others what you'd like others do unto you...Peace!

YOU SHOULD TRY TO BE FRIENDS THEN GO FROM THERE

Your enemy is your best friend. Lets say if he didn't pay attention at you earlier on, but now since you have grown more let him join you and its your time to tease him, but not hurt him. Knowledge is your best defense its your time to show him what he was missing earlier on. Way to go

I'm going to be the stand-out voice, I see. But I say, screw him!

Remember who your friends were even before you "blossomed". Remember that they saw what an amazing person you were and were willing to take a chance on getting to know you. This Johnny-Come-Lately obviously is a pretty shallow person and opportunist who just wants to be where the popular group is.

That is not friend material. That's hanger-on material.

Focus on the people who have always been your really good friends, and just ignore this guy (you don't have to be nasty, but just don't waste your time.). If you take him into your confidence he will disappoint you. Trust me, I've met many guys like him before!

I think the answer needs to be based on a couple of things. First, did your personality change along with the physical changes, causing this guy to take a second look? If you were timid based on your personal image, that makes your own behavior a factor, and you might not want to judge this guy (and others) too harshly. He's aged a bit, too.

Second, what kind of relationship(s) do you want to develop? Are you more an intellectual kind of person that needs people to have great conversations with? Physical? Spiritual? What do you want out of the relationship(s) you now seem able to attract, and can this guy potentially fill any of those needs?

Third, since you say that no one was too close earlier and you now have a "social circle", you've probably made these determinations for others with whom you're now friends. You've got a framework for making these decisions already - what makes him different?

You can accept him as a casual friend and see how that works, if you wish. No matter what you choose, I wish you luck and many, many good friends!

Unfortunately, with puberty also comes responsibility. It is true that many unpopular kids in grade school suddenly become popular in high school. Don't pass up the opportunity to get to know this kid. He may turn out to be the best friend you ever had. The same thing happened to me. I wasn't popular until I got to high school. I made friends with people that never wanted me around before and now we are all still friends.