If all marriages started with a promise of complete honesty in all situations, there would be a lot fewer divorces. Honesty means being truthful and sincere in a thoughtful way
Trust is not given lightly, it must be earned. It differs from honesty, which I recommend you give immediately and willingly in your relationship
When you got married you made a commitment to your partner, part of which was to remain loyal to him. Loyalty does not only mean physical faithfulness, it includes emotional commitment.