Recovering from vaginismus - what is normal?

General

I have been with my fiance for 6 years. During the first two years everything was normal until I went for a smear test, had a horrifically painful experience and developed vaginismus. The years rolled on with me making half hearted attempts to treat the condition with varying success. Now four years down the line my fiance has finally lost patience and wanted to try again so we did. I as shocked to find that after the first couple of mins of pain (he just stays still while I concentrate to relax the muscles) I could actually have sex and the muscles were not forcing him out. We have now managed to have sex a further 4 times. I have two questions:
1. It requires so much concentration to keep the muscles relaxed. How can I further train them just to relax so I can start enjoying myself again.
2. Afterwards I have a feeling of being 'bruised' and sore inside which can last for several days. I this just because the muscles are still too tight?