I'm just feeling that some of the responses are a tad negative and coloured by the personal experiences of others that might not be similar to yours? I might be wrong, it's just what I think.
You know, sometimes people have this idiotic way of trying to force their worst fears to come true. It doesn't mean that they want it to happen, but it reinforces their view of the world again and again and in some way this makes people feel "safe". Maybe the only kind of "saftey" experienced in earlier turbulent situations where a bad outcome would be the only thing to count on, sadly. Maybe that's what he's foolishly doing? It's not constructive but human "logic" can work that way.
Using some different "energy techniques" could help both you and thereby also your boyfriend come to term with this. At the "worst" you'd probably be more clearminded about the situation and about what to do. Or not do.