Why has my husband become so ?

I don't really like to go to outside sources about my life but at this point I really need some insight. I have been married for 2 yrs to my husband. I have a 4 yr old and an 11 month old and I do not work. My husband works 6-7 days a wk and goes to school online. when i was working full time and going to school full time my husband was not working. my dilemma is, my husband has become almost completely . He accuses me of "sleeping all day". He has began cursing at me and the respect level has obviously decreased majorly. I don't know how to handle him. I cook a full meal EVERY day and keep the house as clean as I can with two small kids. If he does not bring back the respect that I was shown in the beginning of the relationship I feel that I would have to move on. I really love my family. My husband and I have great intellectual conversation and alot in common. We just can't stop the bickering! I can't keep my mouth shut after he disses me. Any advice?