My cat is attacking our other cat and dog all of a sudden?

My cat Lillyth is all of a sudden attacking our dog Rascal and our other cat Shadow. They have always gotten along. She grew up with Rascal and was Introduced to shadow in June. My husband was on leave from work for three weeks and started back Monday, and this attacking only seems to happen in the morning when he puts his coat on to leave. and yes it is visious attacking because after it happens she growls and hisses and no one can go near her for about 15 minutes. I don't understand why she is all of a sudden attacking th other animals like its thier fault my husband is leaving. and no attention is not a problem she get to lay with him on the couch from the minute he comes home to when he wakes up in the morning. She has also never been this clingy to him the cligyness has been happening for about 2 months and now the attacking. Also she is an indoor cat and is up to date on all her shots so no chance of rabies or anything. the other animals are also up to date and rascal is the only one who sees the out side world. Im worried because we have a little girl due in a couple of months and i dont want her attacking the baby because she views the baby at fault for my husband leaving. any suggestions about what might be going on or how we can fix this?