[At Mike’s wedding] Paul wore a conservative suit and tie. Jane was also simply dressed. The couple posed obligingly for pictures with the bride and groom after the service, then everybody went back to Rembrandt to celebrate the union, Paul reading out the congratulatory telegrams. He and Jane seemed happy. ‘They could not have been more lovey-dovey and it was in very private circumstances where they didn’t have to put anything on for the press,‘ recalls Tony Barrow, who was present. Yet as soon as he got back to London, Paul took another woman to bed”.
H. Sounes (“An intimate life of Paul McCartney)