How to love someone in depression.
Her heart is getting colder. It needs your warmth.
Don't ask her if she needs you, she will say "no" in a brittle voice.
Take a cab as soon as you realize she's about to loose all confidence in her self. Don't walk out of your apartment, RUN as fast as you can because it takes a second for the sky to fall on someone's head, it takes a second for someone to die inside. When you're in front of her house, fight the sadness in your eyes, don't even try to have pity she doesn't need it . She will open her door and fall apart. Oh! She might as well wait for you to enter, ask you if you need something to drink and maintain the tears inside until your cup is half finished but still, she will fall apart. It depends on how long her heart has been left in such a cold mood.
When she starts crying, take her in your arms, hold her strong because her knees are going to be far too weak to stand without falling. Don't speak, don't promise her anything because she'll think you're doing it out of pity. If she didn't take her bath yet, take her to the bathroom, get her clean, put her a clean pyjamas and enter under the blanket with her. She might give you her back, hold her tight from there and let her feel your heart beating, it will assure her she's still alive. Caress her hair and give her a kiss, anywhere on her face. Be kind to her because she needs it. If she turns and look into your eyes, I hope she will see all the love you carry for her and realize she's worth loving and go to sleep free from her fears not all but at least the worst who is not being enough for your love.
I hope she will wake up with a little smile on her face. All her fears will not wipe off at once but don't abandon her. Her heart will get better, she'll get better if and only if you stay next to her.
She'll get better but love her tenderly, love her patiently.