I feel this way in all relationships when someone is really important to me. Rejection and abandonment are my main fears with confessing how much someone means to me.

What I do know for me personally is that when I do deal with and process the trauma and hurt from my past is that I will be able to overcome it. People aren't born to be afraid of being close to others or confessing how much they mean to them. People are turned in that direction from what they've experienced and been through.

It can very much be healed. It just takes time just like anything else to heal from.