My boyfriend suffers from a lot of mental illnesses and last night he just broke down. I just feel so bad and so confused because I want to be there and help him if I can but I constantly have to put up with the mood swings and the emotional roller coaster that he is. Outside looking in my boyfriend seems like he's mean to me and like he doesn't care but I know that he's suffering from a lot.  It's just hard not to feel like I don't matter or that I'm not cared about or loved. I try not to take it personally but how can I not.  I go days without seeing him or speaking to him because he just shuts me out. I don't know how to let him know how I feel and that I need love, affection and attention. I don't want to cause more stress but I'm a part of this relationship too and I matter. I just really don't know what to do.