history: I am feeling wistful about my oldest son starting his senior year in college. I can't believe his childhood is over. My son is starting his senior year.  I am finding myself feeling so emotional about it. 
current: You must be having bitter ,sweet emotion.I remember my mom was also emotional when i left boarding school for the first time.
next: Yes, I have this feeling of excitement for his new adventure, but also worry. And I'm just going to miss him so much, he's a wonderful kid.