I Am A Very Active & Youthful 63 Yr Ol.

I am a very active & youthful 63 yr ol. My partner ofe 13 years is same age. He has a practice of buying porn which is not at all acceptable. We have had numerous discussions about it. Last August he agreed he wouldn't buy it. ( The porn is hardcore) He is out of town and I was cleaning our bathroom yesterday and found a new magazine. I was so disgusted and feel very betrayed. He has called me and I haven't mentioned it to him. I feel he has a moral problem and don't trust him. Any suggestions ? I am hurt and angry.