A "pushover" is someone who is easily influenced, manipulated, or taken advantage of by others.

Self-sabotaging a relationship refers to patterns of behavior in which you unconsciously (or sometimes consciously) undermine or harm your own relationship out of fear and insecurity.

You can absolutely overcome your codependency and become more independent in your life and create healthier relationships.

Codependency refers to a dysfunctional pattern of behavior where one person excessively relies on another for their sense of identity, self-worth, and emotional well-being.

If couples are not careful resentment can grow in the relationship. However, there are ways to diffuse resentment and create a healthier relationship.