Why does breaking up hurt so much?

I think breaking up hurts so much because you're invested in someone. You become interested in what they love and hate and about their personal views. But sometimes we forgot how valuable our own factors are because we've invested so much in focusing on theirs that when they are no longer there, it hurts to slowly detach from that. It causes a lot of pain everywhere and especially in perception that it can affect everyday life easily. Maybe a broken heart cant be fixed but it can be healed.

I think breaking up hurts because it's natural human instinct to form bonds with each other. Back in the days of cavemen when most humans were part of small, hunter-gatherer groups, being able to stay together was essential to survival. The more people you had working together, the more resources you could get, and the better your chance of survival for yourself and your offspring. Things have changed now though, and with so many people on the planet it's now much easier to move from group to group. But that instinct to stay together is still there.

Because your heart become accustomed to familiarity, and now that that familiarity is gone it hurts. IT hurts because you invested time into someone, and now they are gone. It is often hard for many people to let go of someone they spent so much time and effort on. Specially if the feelings became deep.

It hurts because of the pain of separating someone who you thought wouldn't leave you and love you forever, would eventually will do those things to you. It's learning quite the hard way.

Being in love is like a drug. You get so attached to this person and so hopeful that it'll work out, and all the negativity is blocked out. when a break up happens, it's like your hopes have been crushed and you're ripped away from this person. It's like going through withdrawals, and it hurts every day until you get used to being on your own again.

Breaking up hurts because when you are with someone they are your everything; your best friend, family, partner, future, past and present. You become one person. When you break up you lose everything, it's the fear of the unknown, of having to change the future which your heart was set on, losing your best friend, family, their family. You feel alone and like you'll never find anyone ever again. Your whole world comes crashing down around you and you feel as if you've lost a huge part of you. You struggle to see the light and the end of the very dark tunnel you seem to be trapped in. However in time you realise that everything happens for a reason, you realise you are strong and that you can do this on your own. You look back on the sleepless nights, the tears and the heartbreak and you laugh, because you are free and you have never been happier. Time heals all wounds.

You invest so much into the person you care for, and you invest so much time as well. It hurts when you've given so much to have it taken away.

It's like ripping away something that has been a part of you for so long and watching that part of you disappear. It can hurt when being the one breaking up because no one wants to be that person, but no one wants to go on in a relationship and know that nothing will change for the good no matter how hard you try.

Sometimes the feeling of loss can apply to relationships. Memories made are there in your heart though, it never gets easier but trust me, you can patch yourself right up and keep pushing forward. You never know what new doors may have opened

When we are being ignorant or rejected we feel pain. After a breaking up we lose a person who loved and cared us. And we became ignorant and rejected by that person.