Tuesdays with Morrie

Let me start off with love is a very powerful thing that can make or break a person, or so I've herd. In my personal opinion I don't believe that many people have a problem with showing their love towards a boyfriend/girlfriend, friends, spouse, or family member. You go into the city, or even around here, and you see all kinds of people holding hands, kissing, and hugging and showing the obvious love they have for them. Yet Morrie wasn't exactly talking about that kind of love that we show in public, it was more of an inner love that we all need to survive because humans just have that tendency to be wanted somewhere by someone, even if it is your parents. On the other hand some people are just unwilling to show their feelings either it be "unmanly" for guys to show it or makes you "weaker" in the eyes of your enemy, it's better to just keep it inside us so no one will ever know how we feel.
Why are we so afraid to show love, and I mean not just in public, but in own own homes? I wish I knew why. To think in a different perspective is hard and I tried doing that with this not showing love thing and the only thing I can come up with is maybe something bad happened to them, like someone passed away, and that person had trouble showing it after that because they were so close to them. I don't have a problem showing my love towards family or friends maybe I haven't experience death yet, or nothing life changing has really happened to me, but still even if something did drastic happen to me, I would still show my love...