Glee is Disappointing me. Our affair must end. :(

I used to be a huge Glee fan, a Gleek if you will but now it seems the show has gone downhill.  I keep watching hoping it will get better but I think it's about time to give up on them.  :(
It saddens me but I suppose some of the characters need to go, hell aren't most of them in their late twenties anyway?  It's starting to look creepy.
 I still think it's cool how they bridge the musical gap between the generations and bring families together to watch the show.  Of course Sue Sylvester was my favorite character and I will miss her but I must say goodbye to my Glee watching days.  It's getting pretty lame.