I think it’s worth a try. Sometimes, the ‘distance’ can indeed help. Change can sound scary at first but this might be an opportunity needed to show you that you do have other coping resources or in finding your own coping skills, that you are strong (or stronger than you believe?)... You may also gain some objectivity (as in, not so enmeshed in transference and/or ‘dependence’) or simply that you can even cope quite well without her. So, I’d say worth giving it a go.