i found his "video porn" with his ex

Me and my bf been together about 2 years and finally got married 2 months ago.
But before we got married I found his old "video porn" with his ex, which is really make me hurt and angry.
I'm hurt because why he still keep those videos?? I asked him and he said he forget and already don't give a shit about those videos. But still make me really hurt.
I'm angry because some part of me feel jealous because why he never asked me to make that kind of "video"? 
But whatever it is i still decide to marry him, but those questions still haunted me. I'm still feel that he love his ex so much until he want make that videos and still keep it even already with me.
Am I correct thinks this way? Or should I get over it? Or what?