not attracted to me?

Hi. So here's the story, sorry it's long. I'm in a long distance relationship with my boyfriend, and a couple weeks ago I went to go visit him for the first time in 3 months. (We were high school friends and I had to leave for college) we've been dating for 5 (now 6) months and were planning on having sex. His parents were home for most of it though, so we only had a few hours alone when they went to his brothers soccer game. We got naked, he went down on me, I sucked him off, yea. We had a condom and we were ready- at least I was. He couldn't get hard. We tried for a while, but nothing. After I went back home we were talking on the phone and he said that he googled it and erectile dysfunction can be psychological, and since he had really bad anxiety, I went with it- but I had a bad thought. You see, he watches a lot of porn and masterbates daily. I never really cared, but the girls in porn are really thin and have perfect bodies. I'm 5'6" and weigh 160 lbs. I'm nowhere near as pretty as them, and I was wondering if he couldn't get it up cause maybe... he wasn't attracted to me? This may be stupid, but I'm actually kinda worried...