is it weird? long read sorry x

I have been talking to my co -worker alot lately on Snapchat. we are both 16 turning 17. Im a month older - we have a 31 day streak. Anyways that's the info but he has a girlfriend supposedly... we talk a lot or we just send selfies all day, he knows I know about her but he never ever talks about her, it doesn't say they  are together on FB, no photos nothing. He sends me selfies in the shower and I talk to him about all these random guys asking for sex or photos of me ( yes this happened) he always jokes around about blowjobs etc when I see him. Like I had $40 once at work and he did the gagging blowjob action as if Thats  how I got the money lol.  I'm not that type of person but I just think he is amazing.and so funny And  we connect so many well.I feel like we are getting really close. But I'm worried about it you this gf I never hear about. Thoughts?