(wow i'm the first guy to comment in here) i hate to say it, but I have to agree with your mom on this one. Even though you like this person, I think its still a crush until something comes of it...
wow, I didn't say that but that's what I was thinkin. It's prolly cuz I am a juvenile haha and I have this complex. I'm always trying to prove myself and I never wanna seem like a youngin to my family. So there I am, kneeling at the feet of my mom persuading her and telling her how it could work out, in effect persuading myself..THAT'S IT! I just figured it out..perhaps I have too much faith in something before it unfolds.
youre not a juvenile, but you are in a growing/proving stage. right now, you are a lil sensitive about these issues but you will get past it. trust.