Hi and Welcome
Is your boyfriend the kind of guy who will actually invest the time and energy that's generally necessary for a mono in coming to terms with polyamory?
You can be understanding, empathetic and patient but ultimately it's him that has to do the work; issue by issue.
My blog is specifically aimed at polymono relationships (link in signature). There is also the polymono
group at yahoo
which is a forum especially to support monos in relationships with monos.