Have you considered tht he might slowly start to hate you for it? Ive seen many relationships gone sour like this and the husband or wife has ended up hating each other. Often your children get caught up in between. But it seems like you've already made your choice despite all these advices. You really deserve better than a loveless marriage. But if your willling to make tht struggle, then please visit a marriage counsellor with your husband. Pull out all stops to make it work. Make sure he does not meet with the woman he loves if you want to make him forget her. Make him want to stay as much as possible. Do not let your anger or resentment take over during this time, just be patient and do your best. Wish everything works out for you.