I've noticed that my fiance seems to get frustrated and irritable with LO very quickly. I try to tell him that all she knows is how to cry, and that getting frustrated just makes it worse because she can sense it.. When I talk to him about it he just uses the "I'm tired excuse. Well I'm tired too you don't see me taking it out on our one month old. I know he loves her and he is a great dad don't get me wrong, he just doesn't handle her meltdowns well. I'm trying to be patient because he is a ftd and while I'm a ftm I know the paternal instincts sometimes take a while to kick in. I'm hopeful it will get better once he starts 2nd shift maybe being on a more conventional sleep schedule will help him.
ETA: SO is currently working overnights 10pm-7am
Re: SO gets frustrated too easily
Eta: agreed, men are (well maybe can be) big babies!