confused. Options

[hopefulx3]

I've had a boyfriend now for about 4 months, and yes, i know that's hardly any time, but we're very serious about things. [we're both 15.]

there's this guy who is 19 and he has a girlfriend, and he knows i have a boyfriend and he knows about my age. at first, things were on a very business-like relationship. we talked during work and that's that.

lately, he's been saying hi to me around campus now, and waving to me, and bringing up small talk around the campus if he walks past me. today i needed a ride home because my ride unexpectidly cancelled on me, so he asked me for my cell number and he picked me up and gave me a ride home. i told him how bad i felt, because the weather was REALLY shitty today, and he said: "don't feel bad, if i didn't want to do this, i wouldn't have offered."

i don't know, my friend thinks he likes me.. but i'm not sure because of the scenario i explained. i'm not saying i like him back, i'm just trying to figure out if he likes me... any help would be appreciated?