Wrong time for engagement.

This isn't about me.

But one of my long time friend is engaged. Usually a happy celebration.

But its not. She is 16 years old. Engaged by an 19 year old.

He graduated in 2014 and she is set to graduate in 2017 .

I don't know why this makes me so mad because I feel like he's taking her teenage years away.

How do you guys feel about this?