Am I smothering my girlfriend?

yes you do

Well first off, stop looking to see who she texts!
I find that to be a violation of privacy , she can text who she wants if your trust her then you shouldn't care who is it.
second, she has a life too ya know,she can't ALWAYS be with you.
third, making plans isn't exactly committing what's she did was just showing that she has faith in the relationship and she thinks you can last till then, not exactly committed to it

okkkk I'm still reading this but I stopped right here when you said "I just looked and see who she is texting" ...im also 16 and that right there if you did that to me I would dump your ass for it! I mean I'm sorry for being rude about it but that just crosses my line...you should trust her and not have to worry about who she is texting...and about you getting mad if she don't wanna hang out that is just fuked up I mean my god she doesn't have to be stuck up your but all the time because if she is she is gonna get sick of seeing your face all the dagum time...ok what you should do is back off some...give the girl some space I mean god she is just 15 yall ain't married you don't have to be with her all the time...it seems to me if you wanna no who she is texting you don't trust her much because if you did it wouldn't bother you at all...im sorry for being rude but I'm just givin you my opinion in the only way people seem to listen. bye ;D

COOL! Thought it would work out! Congrats...

Give her a little space... try to break the habit of checking her texts, & be cool with her if she says she doesn't want to hang, & scream, punch a pillow or whatever you gotta do once she's off the phone. She'll appreciate it & warm back up to you a bit, but if you push it much further you could lose her. I've been there & I'm STILL kicking myself years later...

Stop caring then, get your license and ull be all set. I don't blame her asking your parents for a ride to hang with a significant tother can be a huge pain in the ass.