system
lonely: My boyfriend is out of town for work and I really miss him.  I'm so used to him being around I didn't realize how lonely I'd be without him here.
human
That sucks but they do say distance makes the heart grow fonder. 
human
I'm not sure what you mean, but disntance does tend to make things more difficult
human
My boyfriend is out of town for work and I really miss him. I can't wait until he gets back.
human
That's hard, but he will be back! Try to take your mind off him by doing some fun activities