Porn doesn't have to be acceptable in a relationship Op, but its the drunken ex chat that would have been the deal breaker for me.
I am almost the same age as you OP and have been with DH since our late teens, DH admitted he had watched porn in the past but felt a lot of "shame" about it which eroded its eroticness. As an adult, he despises the industry, the way it creeps into everyday society and places unrealistic expectations upon people about sexual behavior and our perceptions of beauty.
People can and do have a change of heart, people once waving the flag for porn can become the same people who campaign against it, I was one of these people - didn't see the harm? All men like it don't they? Hell women love it too! I wanted to appear "cool" with it and when i did start to question the morality behind it all my viewpoint swung the other way and I have been lucky enough to have a partner who respects my feelings, listens to my views and had his own experience to share which compounded our individual feelings into a relationship where we both agree it isn't acceptable in our home and will challenge the preconceptions people have about the industry.
You don't have to share my view, I respect that others find porn exciting and a tool to enhance their own lovemaking - it just isn't my view.
I am not old, overweight or jealous. Nor do i accept my partner obviously has a stealth wank to porn every time I leave the house, that's because we have trust,respect and shared views.
Only you and your partner can set your own rules for your relationship, but personally my love I couldn't and wouldn't accept a partner who considered his masturbation material more important than the the commitment we made to each other and if my husband had experienced body confidence issues, I would be right beside him telling him and showing him how beautiful he is- inside and out. I would certainly not be making the problem worse with selfish, deceptive behavior.
He lies
He makes you feel inadequate.
His wants come 1st
Listen to him, he is telling you who he is.
He will always be number 1
Sorry for the long post, but your OP made me incredibly (sad)
Great username too - Cute is what we aim for
Thanks for the blast from the past x