- The 'no' argument
If you love your husband, and he loves you, there is no reason that you should break up. You got married for a reason, and you made a vow to stay with each other until death do you part. You should always do your best to stick to this vow, and that should be easy if you really do love the person you're with. You do need to deal with the sex issue, though. The problem might be that your husband has a higher sex drive than you, and in this instance, compromise is necessary.
If your husband wants sex then you shouldn't always deny it. Obviously you shouldn't always give in, but completely depriving your husband of sex is not the thing to do. You need to come to some form of compromise, but remember not to tell your husband that you don't want sex. Telling your husband that you don't want sex can make him feel worthless, and can really damage confidence. Instead, you may just want to say you're tired or that you'll be more up for it tomorrow. Be careful with the words you choose. If your husband doesn't eventually come down to the same level as you, then you may just want to have a talk with him about the matter.
- The 'yes' argument
If you don't love your husband, he abuses you and doesn't treat you like she should, then you might want to consider breaking up with him. If you know your husband only wants you around for sex then you should try your best to resolve the issue, and failing that, leave him. You do not want to be trapped in a relationship solely for sex. This is both degrading and unfair, and you don't deserve to be treated like that - especially if you have been a loyal, faithful and loving wife.