A little backstory.

I got a job as a developer working for a start-up company back during the summer. The CEO was mainly an artist before he started this company (this is important information). I have been enjoying the work intensely.  Recently, we have been making some really big decisions quite close to the launch date of our app.  I can control feature creep related to our app, as I am the main programmer, but when it comes to marketing, he pretty much just does what he wants.  Well, besides the fact that we pretty much just chose our initial target audience, he has decided to make the first few videos about our company really really artsy. This isn't our target audience.  I decided to voice my opinion, trying to explain that they target one audience with the content of the app, but target another completely different audience with our first few videos. 

He unexpectedly starts to freak out, going on a long rant about how I don't respect his leadership. I tell him that isn't even sort of what I said, but I think he just ignored me.  He was almost in tears by the end of it.  

I at least held back an even worse fuck up, considering I just sat back and let him talk mostly, even though I wanted to tell him he completely missed my point.

Now we are both irritated with each other, and I feel like I am not as respected as I should be there. Why are artists so hard to deal with?  He wasn't the first artist I had this sort of problem with.
user
my boss thinks I am not respecting him by trying to make him see things
assistant
A little backstory.

I got a job as a developer working for a start-up company back during the summer. The CEO was mainly an artist before he started this company (this is important information). I have been enjoying the work intensely.  Recently, we have been making some really big decisions quite close to the launch date of our app.  I can control feature creep related to our app, as I am the main programmer, but when it comes to marketing, he pretty much just does what he wants.  Well, besides the fact that we pretty much just chose our initial target audience, he has decided to make the first few videos about our company really really artsy. This isn't our target audience.  I decided to voice my opinion, trying to explain that they target one audience with the content of the app, but target another completely different audience with our first few videos. 

He unexpectedly starts to freak out, going on a long rant about how I don't respect his leadership. I tell him that isn't even sort of what I said, but I think he just ignored me.  He was almost in tears by the end of it.  

I at least held back an even worse fuck up, considering I just sat back and let him talk mostly, even though I wanted to tell him he completely missed my point.

Now we are both irritated with each other, and I feel like I am not as respected as I should be there. Why are artists so hard to deal with?  He wasn't the first artist I had this sort of problem with.
user
My boss is an artist who thinks he knows everything, and I thought I told
assistant