Sex was great, then we married?

[MrBond]

"It sounds like the consensus is that my marriage is going to be a clinical sex-starved marriage and I simply have to deal with it. I don't think I can."

So much for your big talk about understanding that M isn't all about sex. Now she's sick with potential side effects so you're going to leave her because she's flawed. You do understand that if the roles were reversed, you would be singing a different tune.

And let's face it. It's VERY early in your situation. You don't know what you will have to deal with. Talk to her about your concerns but from a position of loving. If she senses that you're going to leave if she can't have sex, that will shut everything down.