Think he wants a divorce

I have been married to my best friend for 7 months. We dated two years before and I gave birth to our perfect son 3 months before we got married.. But now I stay home with our son and he works his ass off. I try to keep up with house work, bills ect but with how needy our son is its hard and I fall behind quite frequently. I often go to his fathers house to let our son play with my husbands youngest brother (3mo older than my son) but tonight he flipped out basically saying he would rather be fishing and have no responsiblies than deal with us. Life has gotten miserable lately, I love him with every cell in my being but I feel like he would be happier without me holding him back...he says Hes happy but he doesn't act like it at all... Really need advice