Homesickness is not just a feeling of longing from one’s home. Homesickness could also be there when you miss the presence of someone with whom you’ve been spending your time almost everyday. This metaphor might be invalid for some of you but this is actually true.
Home is a place where you feel safe and protected. You know that there anything won’t go wrong. Everything will be okay. That’s the place where you’ve to be at the end of the long, tiring and a challenging day. You know that when you’ll be at home, you’ll be at peace. Home is security.
The same thing applies when you are homesick from a person.