I'm really glad that you aren't the one that blows up.....actually that will definitely let you outlive him I'm sure.......as I can confess, getting so angry that one actually "sees red" isn't a healthy state to get into. Good to let him be the one that blows up.....maybe one day soon his heart will blow up while he's blowing up & you will be free......very wise on your part. Venting one thing.....blowing up another (have to admit, I have experienced both as I don't have an easy going temperament & when buttons were pushed by my husband for 33 years of his crap

)
Tis a shame that he is spending so much time at your home these days or did he sort of get snowed in there?
I had a friend in college that I was wise enough NOT to marry (ashame I didn't keep my wisdom going). He got married & first wife left him...walked out without anything (didn't surprise me as he was totally controlling). He ended up getting married again & they had a son. My friend had an anurism (sp?) burst in his brain when just after his son was born....lived through that & ended up dying of cancer a few months before my Mother died 6 years ago. I spent quite a bit of time with his wife after he died to provide her with support........she was so glad that he had died.....but was so afraid to say anything to others that didn't know him & understood exactly why she was feeling that way. It really helped her to be able to express that & have someone understand.
Sometimes it feels like the only way out is for them to 'kick the bucket'. Just make sure he's got a very good life insurance policy so you will be well taken care of.
Know that something will come up in your life that will give you the out you need for your peace.