DH has no patience...help!

Jamie
Our daughter is almost a month old and my DH still has no patience for her when she's fussy. So much so that he has completely convinced himself that she doesn't like him. He gets frustrated with her when she cries and I'm not comfortable leaving her alone with him for fear that he will just ignore her or worse. I went to take a shower (for 5 mins) and came back to him yelling at her. I know new parents get frustrated but this is ridiculous!  
I've been as rational and reasonable as I can but I'm fed up! I need help and I'm sick of him not stepping up and at least trying. Does anyone else have a similar issue and if so how did you handle it?