Why does breaking up hurt so much?

Because you are leaving your comfortable, sweet and secure world. And you have a feeling you might and feeling impatient that no one will be good to you and like you as good as your previous relationship

Because you are letting go someone that you would do anything for at one point of life. You are losing someone who knew almost everything about you.

It can be for a number of reasons. The bond you both had, attachment, future dreams, the thought of them being the one, the fear of being alone, the fear of them with someone else.

The thought of something new is frightening sometimes. There are good things and bad things about it. When you get cut, it stings to clean it, but it makes it so much easier to heal.

Because all the the dreams and expectations build ups finally crashes down. It is literally physical pain.

This one's hard. I guess it's because you really invest yourself into the relationship. You have an attachment with someone that's really deep- emotionally and physically. It's as though you're completely vulnerable with him/her and you choose to let him/her know you well enough to be capable to hurt you. And when there's a break up, that's them hurting you. It hurts cause you feel as though you were meant to be, or that it could've worked, etc. but it's really difficult to be certain of a 'what if'. And once you break-up, you lose that one person you were emotionally and physically dependent on and it's hard. As weird as it sounds, it's nice to belong to someone, to be assured constantly. It's human nature. With a breakup, you lose that and that hurts like hell. It's kinda hard to summarize but that's why I think breaking up hurts so much

Because when you are in a relationship you love someone with all your heart and most of the time they become a big part of your life. So it's normal that when they are gone it's hurts a lot. It's usually worst at the beginning but eventually things do get better.

Well when you're with someone you share different experiences which become your memories. Memories are hard to let go

It hurts so much because your letting go of someone you've been with for a long time and being without them well it just hurts

Because it's the price we pay for opening our hearts to love. If it didn't hurt, then we wouldn't love/care about the person.