It is also possible that many of the experiences that you’ve had in life have wired you into relationships that are functional but sub-optimal. Either a local minima or a sub-optimal Nash equilibrium if you will.
Some modes of therapy are like you mentioned an attempt to reframe your world view. Those modes of therapy would be unlikely to help someone in your circumstances. Other modes of therapy are more focused on helping a person escape the local minima and start moving to something more optimal.
For example a victim of traumatic car crash can’t be taught that cars aren’t dangerous. Life experience has shown him that cars are dangerous in a more direct way then most people would be able to understand but therapy techniques such as EMDR have been shown to help.
In other cases early relationships may have been with people who could not or would not act as healthy, reliable partners. It is impossible to un-learn that a relationships (or most relationships) can be highly one-sided or exploitive. Attachment therapy can help a person model what a mutually beneficial and trusting relationship can be. This can help them to recognize unhealthy relationship patterns and provide them the tools to establish healthier ones and move into more enriching relationships.
I don’t know what your experiences are but likely they aren’t entirely unique. Hurt people, hurt people. Soon the entire world is traumatized. In an ideal world we’d all be embedded in families and communities that modeled healthy relationships that could heal us from these wounds. The world isn’t ideal and sometimes we need professional help.