on one hand, i suppose you have waited this long... a few more days will not hurt...
on the other hand, having the conversation after bff leaves may give you a false start... i experienced false starts when i thought i would commit to my marriage because something else in my life was going bad, or i was losing something in my life...
my commitment would last for a while, and then i would fall away again (see what psysara is experiencing with her H)...