I'm guessing you know more about the situation than you're saying. Because surely this has been going on for a while, so there must be a lot more to it than you're pointing out.
I didn't realise the whole 'blocked/unblocked' thing was still going on with you two - I thought you'd sorted any underlying problems there may be! When I'm on MSN next, and you're both there, I'll suggest to Chris to unblock you (if he has indeed blocked you, as I'm not sure) and hopefully you'll get the chance to finally sort out what's been going on for a while.
I wouldn't worry about it too much, but I suppose it's good to get a rant off your chest. I guess it's quite difficult for Laura having to be stuck in the middle, basically.
So I hope you two sort it out.