K.S.
Hi H.!
I have stories about longtime friends flaking out also, I'll tell you those later but my advice is to just live your life to the fullest with out those friends.(I know it hurts, especially when you are a good friend)The problem is these folks are in different places than you and your hubby and they may well need to have space to work out their lives.
More than likely they will come back around when they have worked through things. If you are a great friend you will accept them with open arms.(this is assuming they haven't done anything directly to you or your husband that is wrong!!Needing to work things out on your own is just a part of the maturation process, just pray for them, they may need it!!)