Crumpet hunny
Im pretty jealous too, its agony to live with. I honestly think it doesnt come from nowhere and for no reason. A happy secure child has no reason to feel jealous, and no reason to grow up into a jealous adult. So first of all its not your fault.
Secong of all, if you are not being reassured in the way YOU need then the feelings will never go away. Being pressured into not venting your feelings wont make them go away, however much you boy/f hopes they will. It just makes it convenient for him not to have to hear and hence deal with them.
If he is doing something that is hurting you then he shouldnt do it, even if it is all innocent. I do think men can easily pretend innocent, pretend not to read between the lines, pretend that if they think there is nothing in it then you HAVE to put up with it, even if it is hurting you loads. women are so easy to make feel guilty.
I have no answers expect - dont blame yourself. If its any consolation at all, loads of people (including me) think the pictures of you are gorgeous (you read the thread, right?) and I was just a tiny bit jealous of that...
You are a beautiful intelligent sensitive person, and I cant wait to meet you sometime.