First off, let me start by saying that in no way are you a bad person. I will address way of your topics in order, first with the topic of pornography. I completely understand feeling that way about your significant other watching pornography, one of my biggest flaws is jealousy and the idea of my significant other watching pornography makes me jealous as well. Perhaps a good way to spice things up would be to watch pornography together? It is a great way to get some new ideas and can be an erotic experience when watching it together. If you have made it clear that it is something that you are uncomfortable with him doing and he has agreed to not watch it anymore, then that is as much as you can do. Snooping will only feed into your jealousy, and will only offer temporary relief. The best thing you can do is take his word, because if he is watching it behind your back there is no other way you will know. If you feel his word isn't good enough and he is lying, perhaps it is time to question this relationship, because if you can't take his word on this then what will happen when there is something really important and you can't trust him? As far as the girl in his class goes, it sounds overall harmless besides the sexual references, that sounds a little over the line. It is natural to feel jealous when our partners are giving attention to another, but instead of displaying those jealous emotions, try to engage in the conversation. I hope I am of some assistance to you, and I hope things work out for you.