Why does my girlfriend no longer tell me she loves me when we aren't actually face to face. She went to a party last night got very drunk and now treats me different. She is 14 and I am 16?

It depends on how long she hasn't been saying I love you to you. If it's been for a while and it hasn't been faced to face, it could be because maybe she's falling out of love with you or maybe it's because she doesnt want the Word to become over used, and only wants to use it when the moment is right. Well if she got drunk last night, maybe she doesn't feel good, give it sometime and you will see what will happen. Good luck.