I know it's tough with teenage boys or girls, but sometime they just surprise you when you least expect it. Check this out.
My oldest son posted this on my Facebook page early this morning:

"Love ya mama hope all is well! Just thought i'd stop by and tell you i miss the hell out of ya. I've been up all night cramming for these last couple of finals so i'm running on 1 hour of sleep. I'm sure you're up right now because of that crazy thing called work! Just know i'm thinking about you! Please pray for me with these last exams I'll be in town a little after noon Tuesday!" He's wrapping up his very first semester in college and had to pull an all-nighter. Hope he does well.  I'm praying for you and I miss the heck out of you too!