Some say having an unrequited crush is the worst when it comes to love. I tend to disagree. Look at it this way, with a crush at least you have a singular person to feel affection towards. Your objective is clear; get that person to agree to date/marry/fuck/kiss you. The worst thing is craving love. You don't have a specific person in mind, you just crave human affection. In my case, I simply want someone to talk to. Someone to wake up next to. Someone to be physically, mentally, and emotionally close to. Someone who knows my favorite color, how I take my coffee, and understands holding hands makes me feel special. I want to sit down and watch a movie or play video games with this person with no extra expectations or intentions. I want them to send me texts or pictures of random things saying "this made me think of you".
This is what it is to crave love, to feel alone in a crowd of friends and family.