Bond between husband and son

My husband pretty much refuses to bond with our son last night I told him I felt like he hated our son then he ignored it and changes the subject our son is only 2 months old and takes up a lot of my time, so it makes us fight a lot cuz his attitude lately is horrible never wanting to spend time with kids just me. Our 1 year old daughter craves his attention but he has been pushing her away lately we have known each other a long time been together almost 2 years and married a lil over a year Idk wat to do please help