How to deal with easily offended/angered husband

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I have been with my husband for 7 years now. Married for 3..I love him to death how ever he gets hype

/over dramatic / easily offended so quick over the slightest things (things not relating to our marriage as well )

In the beginning I was SUPER patient and would encourage him but now I have lost all patience and it has turned me into a bitch with no sympathy with things go wrong or when things don’t go his way. Or I would anticipate that he would spaz out that I would already get into bitch mode (meaning my face expression changed )

The last three months I did a big self evaluation and i realized that I’m still his spouse and I still need to let him know that some things aren’t worth him getting upset about and should be handled differently.

But with this being said this has given me extreme anxiety and I started smoking. Not a excuse to start smoking but I didn’t know how to deal with this...I tried talking to him about it, then he thinks I’m talking to him like a child, I tried walking out the house , I told him to get counseling and I would go with him ...I will say that when I started smoking it really woke him up and he calmed a bit because he saw it really had an affect on me...but after a month or so it started up again and I literally don’t know what to do.