Re: Should i be hurt?
Feroza,
Your husband and your marriage needs your help. Your husband needs your help to save him from another woman -- he is being used. Approach the situation as of protector (of your marriage/relationship) rather than a victim.
Imagine if the situation was reversed and you were making a mistake, wouldn't you want your spouse/lover to be there for you and SAVE you from making that mistake?
Sometimes spouses/partners/lovers are too proud to ask for help or intervention but are grateful for it later.