It hurts because we've been hurt one too many times. The pain cuts so deep that we vow to never give anyone the power to hurt us ever again. What we don't realize when we operate with that mindset is that we're also not allowing anyone to truly connect with us and love us in the way that we deserve. Living with abandoment wounds is no fun, because as much as we want real relationships (partnership & friendships), we are equally as afraid of the "what if?" What if it doesn't work out and what if I end up hurt like before? How will I ever take it?!"
But it's also no fun to never be able to connect authentically and genuinely, on the deepest level with someone. Let me remind you that you deserve to. Will you really run away forever from what you're destined to be able to do - to connect?