Learn English – other ways of saying ‘to want something bad enough’

I've been surfing the web looking for an alternative to 'want sth bad enough' but I haven't found anything useful.

I've got a dialogue between two characters who are a couple. They're facing difficulties and, even though they're in love, they don't know how they can ever make it work.

I wanted him to say something like:

If we both want this bad enough, we can make it work.

However, I want to avoid the word 'bad'. I have tried "if we both really want this", but I already have enough 'really's around and I was hoping for something more emphatic.

Are there other alternatives that retain the idea of 'wanting something so bad' that you're willing to make all type of sacrifices in order to get to the objective?

PS: I'm adding the single-word-request because there could be a single word that would fit my purpose, even though I don't think it's likely.

In response to the comments: you have made your point loud and clear, so I will reconsider my stance. Nevertheless, just to avoid leaving this dangling without an answer, are there other alternatives?