Bonding glue, it may be used as the middle of 2 things, but it's never the center point.  It gets used and used putting things together, but never did those things appreciate what it did.  The 2 things would come together and for a little while, would recognize the glue, but after awhile the people only acknowledged the compounded things and not the reason it was put together or how.

What happened to my best friend whose name I cannot tell.

She left me for a guy, she basically rang my bell.

She's so gone, I lost her never more to be seen

What ever happened to "we're too young to even look at a guy"

Who knows, but she left me for a dude, wow real crude

She broke another guys heart wow so rude

He's so depressed I think he's thinking of suicide

It's all her fault we've all gone mad, some of us are even sad.

But forget about us, it must be easy , she did it