@lulli3456 ,
You should also accept that your expectations are unrealistic.
The vast majority of us have had sex with more than one person before we got married. There are very few people, in any culture, that are virgins when they get married. Religions that tell us otherwise are lying.
Your husband didn't do anything wrong. Having sex is normal human behavior and it wasn't fair for you to expect him to abstain before he met you. I don't think it was right for you to make him apologize. It certainly isn't right for you to be seeking out this other girl.
A happy successful marriage means that you are committed to each other now. What happened before you met doesn't matter. There are many people who have happy successful marriages.
I agree that you might want to get counseling (if that is available to you). In any sense, you need to figure out how to get over this, or having a successful marriage will be impossible.