<human>: Condense the text into a few key points

To start off, I'm an 18 year old male and the girl in question is an 18 year old female. Just wondering how you guys would interpret this. I just had my prom last week and went with a girl that I really like. I know for a fact that she likes me too, but her dad is pretty protective and doesn't want her dating. Anyways, a bunch of pictures of us were uploaded to facebook and we were tagged. She untagged herself from all of them with her and I without saying anything to me.
On one hand I completely understand why she did this; she just doesn't want her dad finding out. I know that she isn't at all embarrassed by the fact that she went with me. On the other hand, I feel that it's time to grow up and just tell him. We've been seeing each other for a few months and she hasn't even mentioned me once to him. We're both 18 and I feel like that's way too old to be playing little games like that and sneaking around. What should I do? Should I bring it up with her or just let it slide? It's not so much the facebook photos that I care about, it's the fact that she isn't willing to tell her father anything about me and make an effort.
<bot>: Girl is obviously interested in me but she has an overprotective father and is trying to hide me from him.