Odd dream, need explanation. (drug warning)

I had some dreams before this, but this one had me thinking today and it is a little erotic.

I am a "bi" boy, I haven't told anybody but I don't know if this has any relation to it.

I saw somebody that I knew, and that I wish was younger so I could be able to talk to him about stuff, but, that is not the case, He was about 7 years older than me, considering I am a (pre) teenager. Keep in mind I actually know this person in real life, and we share the same interests.

I was at walmart, and for some reason, I needed a condom. I honestly do not know why, and it does not come in to play in this dream at all for the rest of it. Now, since I am too young to buy condoms, I thought about asking somebody that was checking out at walmart that was buying condoms to ask them for one. The person I know is there, and he has condoms on the counter. I asked him for one, and he said sure, and was very nice about it.

I don't remember the parts leading up, but, I remember the time in the dream, 4:47pm, and the guy that I was talking to asked if I wanted to smoke some weed. I don't really have an interest in drugs irl at all, but I have always been open minded to something happening, since my life is so boring. I said no, because I had to get back home before 5:20 because my parents would be home, but I did tell him that the day after that I would stay home and I would.

I want an explanation. I never had feelings for this guy in the dream in real life because we are so far in age differences, but I have always tried to. But this certain dream sort of makes it feel erotic since I knew the guy in the dream.