Is it normal to not look like the girls my boyfriend jerks off to?

It sounds like you're being insecure.
Remember - jerking off to porn isn't cheating. It's neutral. LIke eating a sandwich.

You start off sounding like you're OK with porn, but then you sound angry and defensive about it...

There's several problems with this - and none of them have anything to do with the fact that he jerks off to photos of other girls.

1) Masturbation is between you and your hand (or toys) unless you CHOSE to invite someone else in.

2) No one likes being micro-managed on their fantasies. I mean would you want him to dictate what kind of romance books you read?

3) Sometimes ... you have to understand that its not all about you. You've worked yourself up into a fighting mode, talking about what he jerks off to and what it must mean about your relationship....

Except that sometimes it's got nothing to do with you. Sometimes there IS no meaning... other than the ones you've decided it "must" mean.

Or in a nutshell... maybe you're beating him up over his masturbation instead of facing the real issue ... that you're insecure about some aspects in your relationship.

Sure it's easy to blame him and what he jerks off to - much harder to face yourself and admit that you are insecure... but eventually you have to do it. Why? (because beating him up over his private fantasies is a great way to encourage him to leave)

In my experience, THAT is not something to worry about.

I've been in your place, and it's mostly a thing about guys and diversity.

Let me phrase that correctly, many guys have a thing about something...some like redheads, some like big boobs, some like thin legs...or something about things girls are willing to do...like doing it outside, doing it anal, whatever, you get the idea.

In my experience, aside from that "thing" they have, they vary the other stuff alot.
I have an A-cup, or very small breasts. I found my first friend was masturbating quite a bit, and to videos of rather voluptous girls. Needless to say, that made me very self-conscious, especially since i was quite...lets say, available to him, too, and back then i didn't really understand why he would rather masturbate than fuck.
When we had a hefty fight near the end of this relationship, i also "threw" that at him, claiming that he's into big-breasted women anyway, so he should go find one because i'm not staying...to which he assured me that he actually PREFERS small breasts, and the big-breasted girls were just a thing of variety, because that was something he didn't "get at home". I did not really believe him back then, but after me, he had another small-breasted girlfriend, and his wife nowadays is ALSO smallbreasted...

Guys just like diversity, so if them girls look different than you, that may actually be a good thing because he's getting his diversity fix from porn, not another women.
The fact you don't have sex a lot and he prefers jerking may be a different beast, though...

People's sexual fantasies don't always match their reality (hence the fantasy part). It doesn't at all mean he isn't attracted to you or that you don't measure up.

People also have different levels of sex drive. Would you want to bone as often as he is masturbating? There's nothing necessarily wrong with having different sex drives. You shouldn't feel pressure to match his, just as much as he shouldn't feel he can't fulfill his if yours is different.

If he's faithful to you and treats you with respect then that says much more about that way he feels about you than whether someone in an image he looked at has red hair and you don't.

first, he has you, thats all that matters, second, if you want to bone more, then whenever he is jerking off, come up behind him and start playing with him, be sexy and what not