You read far too much into this.
I think there might be more innocent reasons for looking at teen porn. A lot of times, teens have not gotten wider hips or saggy breasts... You may not fit that description, but in porn, looking at 30 year old women is a waste of time. The whole reason to look is to see beauty. You may be the exception at 32 years old, but that does not mean the porn pics of women your age are as appealing as you are.
The only reason I think younger women look better sometimes is the skin tone and smoothness. Very few 30+ women have that smooth of skin and firmness in the skin.
I don't think your man would ever consider sleeping with a minor. But why should he look at older bodies when the younger ones are better?
That would be like you going shopping and skipping the fashionable clothing and going right to the rack that has outdated styles. You wouldn't do that because that defeats the purpose of shopping for new clothes. When your man is 60, he will still prefer a 22 year old body to look at. Does it mean he will sleep with someone his granddaughters age? No... but what looks good, looks good, and what doesn't, doesn't.