All the things, that we've been through

You should understand me like I understand you

Now girl I know the difference between right and wrong

I ain't gonna do nothing to break up our happy home

Don't get so excited when I come home a little late at night

'Cause we only act like children when we argue, fuss and fight

the lyrics to "If You Don't Know Me By Now" by Simply Red are pretty mature. written by someone with a bit of life experience.

the song:

https://www.youtube.com/watch?v=zTcu7MCtuTs

i like this song a lot.