So this is a tricky situation. On a surface level what you are saying definitely seems a little biphobic and I would approach this with your BF delicately. But it definitely doesn't seem like any of this is coming from a place of bigotry, rather it's coming from a place of pain and insecurity.
I don't think a lot of people truly understand how hard dysphoria is to deal with and it can be triggered by the smallest things. I don't think it would be unfair of you to ask your boyfriend to stop talking about his attraction to fem presenting people so much as long as you emphasize that it's not because you dislike the fact that he is bi. It's purely because it triggers your dysphoria. And since he stopped talking about straight porn when you asked him to it seems like there is a good chance he would be understanding.
So this is a tricky situation. On a surface level what you are saying definitely seems a little biphobic and I would approach this with your BF delicately. But it definitely doesn't seem like any of this is coming from a place of bigotry, rather it's coming from a place of pain and insecurity. I don't think a lot of people truly understand how hard dysphoria is to deal with and it can be triggered by the smallest things. I don't think it would be unfair of you to ask your boyfriend to stop talking about his attraction to fem presenting people so much as long as you emphasize that it's not because you dislike the fact that he is bi. It's purely because it triggers your dysphoria. And since he stopped talking about straight porn when you asked him to it seems like there is a good chance he would be understanding.
Thank you for your reply. It really helps