HELP ME!!! (BEST ANSWER 10 POINTS!)?

Alright so here is exactly what happened. A while ago, one of my best friends(Let's call her Lilli) told me she like my best guy bud (Lets call him Devon) and asked me about his personality and major turn-offs and blah,blah, blah. Well the other day, Devon comes up to me calling me a clinger for no reason. He never stopped. Finally, last night I confronted him about how what he said hurt my feelings. He didn't care at all." He was like well your a clinger." and I called him a jerk then he tells me "your like Danielle from jersey shore" then he said "your such a stalker" WHEN I DON'T EVEN STALK HIM! He was like "you have the to tell Lilli not to be clingy, when your the clingy one" so I replied with "How about I never talk to you again? It's your choice though". And he never replied. And today at school we ignored each other. What should I do from here on out? And should I be mad at Lilli for telling him everything I told her?