We spend so long working on keeping it all together and saving the M and improving ourselves...that when our S comes back on board we suddenly feel the balance of power change......and then we relax enough to let the resentment that was hidden behind the panic before reveal itself.
I think what you are feeling is not uncommon. Try to work through it.....it is worth it.......honest.
I found this phase almost as bad as the 'bomb' phase.
Saffie me 46 H 46 M in 1986 D20,D18,S16,D13 H's A 01/05 to 07/06 H recommitted to M 07/06 renewed vows 09/06 Going from strength to strength