To put you in context, me (23 F) and my partner (23 M), my partner when I met him was suffering from a very severe depression, with panic attacks, insomnia, rage attacks... That little by little he was overcoming or at least mitigating . Now we have to have a much longer LDR in which we can only see each other one week each month. 

When we are together he is the stickiest person you can imagine but every time I leave it is as if he changed from one extreme to another, in less than a week of LDR little by little he cuts off contact with me, ending only with the occasional message generic daily, more than anything to let me know that he is fine, but he has already told me that he does not accept calls or answer messages (bc his not in the mood). Then when we get back together he acts as if nothing had happened and is super affectionate again.

I know he is going through hard times but it breaks me to be alone and seem to be without a partner for a whole month. Has anyone been through something similar? any advice??