No, you don't have to live like this.
There are men out there who don't watch porn, either because they (as goddessofsmallthings has pointed out) object to the fact that the participants are often coerced, or simply because it doesn't do anything for them.
I personally would not want to be in a relationship with someone who used porn simply because I have read too much about the industry to be comfortable with it - it is often evidence of filmed abuse, and is often full of violence and abusive acts being portrayed as sexually desirable. There are others on this thread who do watch porn and are comfortable with doing so (and there is, I gather, a market in "ethical porn" which allegedly comes with guarantees that the perfomers are not coerced).
I think what you need to do is spend a bit of time working out what it is about it that upsets you, and try to explain to him. (If you didn't present it as a potential deal-breaker when you got together, he may be completely taken aback). The important thing is his reaction - is he prepared to acknowledge that it hurts you, and that you are allowed to feel hurt by it? Or does he get all defensive? If he is prepared to talk about it sensibly, then hopefully you can find some way through it. If he stonewalls, given how upset you are, then I think you may have a problem.
By the way, I do think it does not in any way reflect on your attractiveness, it is entirely about him.