Offered as advice to me today on the internet, my particulars in brackets to replace the given phrasing: "I’m not going to abandon you, but I cannot be both your caregiver (your relationship counselor) and your romantic partner. If you aren’t going to work on your mental health (relationship skills/relationship with me) and just need me as a support, I can do that but I won’t be able to do that and maintain the romantic aspects of our relationship"