((((((((turquoisesea)))))))))
In response to you not being sure if the things you and your boyfriend do together have been done before, maybe you could as him to try something new with you. Tell him that you think it would be a cool idea to have something for just the two of you, that's about just the two of you, that neither of you has ever done before. Take a class together, watch a tv series from start to finish, cook, explore someplace new that neither of you have seen before... If you want, you could even suggest starting a tradition of your own. It doesn't have to be anything huge, maybe just going for breakfast on the first Sunday of every month, or going for a walk in the evenings, something simple but that is entirely YOURS. Get his input and see if there's something he'd like to do with you or an experience he thinks it would be cool for both of you to share.
Jealousy is a terrible thing. I've only really felt it once before and it was awful. I was disgusted with myself for the things I was thinking. I'm not really sure what to tell you because for me it just passed. Then again, my situation was a little different from yours. I was jealous of my best friend's girlfriend because I was head-over-heels in love with him. Then I realized what a jerk he actually was and started pitying the poor girl instead.


Anyways, good luck. It's great that you can be so open with your boyfriend. I think that'll go a long way in helping you figure this all out.