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I would consider breaking up. Sexual intimacy is very important to me. I guess I would have to consider the reason and evaluate the relationship. >

If you're denied sex for months and are clearly unhappy, you should break up with that person. >

Depends on why they’re denying it really. 
If it’s just cause they had your child and need to recover and it’s taking longer then usual? No
Are they just in a bad place mentally? Then you do some thinking, do you want to stay with them and help them get better or break up and find someone else? 
Are they abstaining for personal reasons until marriage? 
Is your sex drive just higher? Maybe y’all should talk about an open marriage. 
But sometimes people just don’t line up in that department and that’s alright. That’s why you talk about it. If they want to open up the partnership (for both sides) then do it, but if not you should figure out if you want to stay in that relationship.
Not everyone needs sex. Everyone is different. >

!!! Dumping someone over the first reason is so vile >

Wouldn’t it make more sense to just end the relationship? >

Just don’t be in a relationship with that person… what is the outcome supposed to be? No sex for life? >

It's better to find someone you're compatible with or go into a relationship with this negotiated up front. >

Im asexual and my fiancé doesn’t care about sex either.  It really isn’t important. >

it’s not important to you, but it’s important to others and i think that is what op refers to >

I actually agree with this hey >

If you are regularly denied sex you aren't in a relationship.