The man you are with is your true love. Don't let your friends run your relationship again. Trust me they just weren't worth it in the end. They left you in your time of need.

 Listen to your friends and break up with him first. Cutest Couple isn't worth it, especially since you spent the year crying which wasn't cute at all. He ruins the only senior year you'll ever get, and you'll regret it forever.

 He's serious. Stop wondering if it'll work. Just say yes. ;]

 Never stop karate chopping.

 He was lying to impress you. Go with your gut feeling. Don't let him tell you otherwise. He'll end up crushing your heart if you do.

 Don't waste time living up to others' expectations for you. Achieve what YOU want to.

 I would give you experienced advice and say "don't do this, don't do that". But, truth is, I fear that if you do anything different, you will change your future. Your future is great just the way it is. You will live. You will love. You will be loved. Just stick life through. You'll see.

 You spent too much time believing you'd wasted your time on him. You found your strengths and, yes, weaknesses through that five year relationship.