Have you ever lost a love?? whether it just wasn't meant to be or it was because of disease/death/...etc
You feel like your soul has been took off of you, it's hard to breathe and live...A cut so deep that it leaves a hole inside of you. Everything reminds you of every past moment you had: a place, a look-alike person, words, a car, the weather, dates... everything. Not only you want to be alone, you want to be on a whole other planet just to be left alone, lying there not doing anything not moving just... staying there, staring at the space and thinking "What happened and led me to this??". You lose every meaning to life, and words like everything's gonna be fine", "you're better than a lot of others out there", "maybe this is for the best" just don't have a meaning at the time, especially if it was something like "I told you so". What's best to say about this is don't give it much thinking cause you may never know - at least now - why they happened: the love and the loss.
There was a saying I read before that was "to love and lose better than not to love at all" but I don't believe in this, cause the loss is very heavy and the costs are paid from your very own feelings that you'll never get back. Better to say that don't love until you are sure of many things first, don't give your feelings that easily because they are very precious, and most important don't ever lose faith in love cause it's there and it exists but may be not the exact way we imagine it. Slow down and take your time, no rush about that. Love isn't words cause they are the easiest to give away, love is actions. Love is a two-way flow, giving is more important than taking, a reason why we should be together. Love is more beautiful and meaningful that just being the stupid relationships we see nowadays.
If you lost love or been hurt by someone you loved let it go, move on and live life cause whether you like it or not: life goes on. Days are passing and the clock is ticking so don't waste them and make the best of that life you've been given. Start to take a look around you to see how others are doing then you'll start to understand the words I mentioned above that are said by others. Make whatever changes to start having a new meaning to your life; a new career, a hobby, a trip, anything. Don't worry if you are looking for those feelings when you want to have again and couldn't find them, maybe it's also not the right person or time. Give yourself time to heal and feel better.
Being alone isn't a bad thing, it's even better than being with someone who simply doesn't care, someone who does not appreciate your being in their lives. Look around you and use the love you currently have. Family love, friends love, job love, any legitimate way to invest your feelings so they won't just dry up and die. Keep them alive and flaming,love and give more of it to see the best results. Above all: Love Yourself so others are able to love you, love yourself and accept it in every way it is and always try to make it better and better. Every person is a beautiful person in their own way and everyone deserves to be loved so never give it up. Another saying I heard in a movie and I like is that "If we're all alone, then we're all together in that too".
P.S.
I'm not mentioning loving Allah cause it's not in the comparison it's above everything else and it can not be replaced by any way.