That might be a good one for a girls ego, but there's another side to it that you're not getting.
For every type of girl out there, tall, short, thin, fat, ginger, whatever, there's a selection of guys who will think she is the hottest thing in the world.
You might think you're a plain jane, but it's possible you'll run into a guy who thinks you are sex on legs. And if he's an a**hole, he's just as capable of using you as a normal guy is capable of using a regular "hottie".
In other words, just because you think you're a plain Jane, don't assume that the guy you're dating thinks the same. It's quite possible he doesn't.
You can be below average looking and guys could still be with you because you have a vagina and look better than his other options.
Also the idea that real love is about who we are and ignores what we look like is just propaganda we are fed as kids. We are discouraged from trying to become more physically attractive. Why? Might lead to sex.
Ideally the person with you loves your personality and your body. And of they don't love both, it hurts bad.
That's actually a good point. You won't attract the shallow guys (unless you're his type, like you're a 160 lb redhead and he only dates big booty redheads). So if you're average I think there are still people who would find you hot. But yeah you won't get the guys who are all about looks. You know what's funny most of the girls who got married early are what you'd call average.