Love brings tons of happiness; I agree. I once tried to understand what really happens to me when I fall in love. I read some pieces of stuff about it, then I found scientists who turned love into theoretical things, and I thought it was cool. When you fall in love, your brain, especially your reward system, will be flooded by dopamine, and this is why you constantly feel happy when your crush is around (of course, this is a simplification). This stimulation of your reward system makes you addicted to your crush and you'll force yourself to always keep in touch with each other. Although I can't manage to understand the theoretical things of love thoroughly, at least I found the fact that the reason behind the joy of love is highly biological, and everything thereafter becomes plausible in my head.

Starting from there, the most important conclusion (I think) I know is, I can control myself. I can stop before I get addicted, even if my brain tempts me with the lure of the happiest moment I'll probably get because I know that it's just the effect of dopamine and it won't last forever unless I let it to. One of the things that I haven't known yet is why only a certain person can stimulate those reward system things and make one addicted. 

When I wrote this, I (again) began to think about how weird I am by giving a shit about these intricate things while a lot of people out there choose to enjoy it all; the joy of love, and the grief of broken heart. Perhaps the answer is within my insecurities; I am afraid of lots of things: failure, frustration, and being faulty. This weird gal tends to bear with the burden of solitude than to experience the bitter of love.