How do you make a relationship work when you have mental health issues? It's a big question and I've learned some important things via my own experiences throughout the years since being diagnosed with Borderline Personality Disorder. The first tip I'd like to share is: make sure your partner is well educated about your mental health condition. Do not expect them to understand your symptoms or what you're going through. Keep in mind, most people do not have a good working understanding of mental illness.