It's great you have awareness of what your patterns are. That is always the first step in breaking a pattern.

However, staying in this relationship where there is no equal give and take will remain unsatisfying and painful. She won't fill the motherly void.

To break a pattern, you need to have clear boundaries in relation to how you expect to be treated. It is also self-care. Staying in a relationship where people can treat you how they want, on their terms, is giving others permission to use you. The pattern will be perpetuated.

Stop the pattern, however painful it is. Stay alone and do not get into such romantic relationships if need be (surrounded by other sources of support e.g. therapists, peer support groups, friends etc) rather than get into a relationship where others will only break your heart.

Nothing will change until you make the conscious decision for you to change. Then take active steps to follow through. Otherwise, you will keep attracting the same type of partners i.e. on-sided, unavailable and unfulfilling. And the same pattern will keep repeating.