Why is my husband treating me this way, we only got married a year ago and hes so nasty.?

we both fell in love with each other the minute we saw each other, we both felt we were right for each other and got married and have been very happy , he was made redundant from work a few months ago.and hes taking it out on me. but its been a few months my husband is not treating me right like he did before, he ignores anything i say,blames me for everything that goes wrong, emotionally detached himself from me which is so hurt full because he was never like this, a few days he humiliated me so badly at my parents house who had called us for dinner i was completely heart broken , since then i sleep upstairs and he sleeps downstairs , iv been crying non stop for days because i cannot take it anymore and dont know what to do, i feel bitter towards him because i feel so ashamed of him how he belittled me infront of my family so when ever i want to get near him i just freeze and turn away as i have not fogiven him i love him so much, we dont talk, cuddle , or make love anymore like we used to, i really want my marriage to work. please any advise is good thanks. xxxxx