daddy, sorry, but he sounds like a complete tosser. It is absolutely wrong of him to criticize you for your past life, and then claim that porn is fine because he's decided it's so.
Do you know why he objects to your past life? I can understand you regretting a bad relationship, but on the face of it, a relationship with an older man isn't anything to be ashamed of, and it's certainly not a mistake to judge someone for.
May I tell you about my DH? It's relevant, I promise. DH belongs to a religion where sex before marriage is considered a very real sin, and his culture also backs this up. However, he knows perfectly well that I have had plenty of pre-marital sex and thoroughly enjoyed it, and there is no way he would judge me for that. I've had a couple of one-night stands that were mistakes and which I regret (and he knows that), but he would be bemused at the idea that it's any of his business: we weren't together.
Imo, that is a normal reaction. It would also be normal for him to be a bit jealous, or a bit wistful, about my past sex life, I think. But it's not normal to guilt-trip someone about it. That is really inappropriate and I can't understand why he would do it, especially if he doesn't even afford you the right to judge his sexual habits within your marriage!