<human>: Can you give me the gist of the text in a nutshell?

Hi guys, 19/F here.

I bought my first cellphone today. Half an hour after I left the store the guy who sold me it texted "Hey X its Y, I forgot to give you my number before in case you have any questions about your phone."

I texted back a little while later but kept it simple "thanks but no q's :)". He responded "No worries but if you ever do you know who to talk to lol :)" 

I'm just wondering if it's standard practice to text your customers after you sell them a phone? I asked a coupla my girls since im a first time buyer and all and they said something along the lines of "not if you didnt give him your number/he didnt ask for it" (which he didnt, but he clearly got my number from the paper work/computer file).

Butttttt I did buy my phone from a super small store/cell phone provider while literally ALL my girls have iPhones/BBs which they got from big box stores. I feel like smaller stores generally make a point to practice better customer service so I'm just chalking it up to that.

Anyways I'm just looking for opinions since I found him hella cute (and he seemed my age or 1-2 years older max). We talked for about 30 minutes and he was really helpful but definately didn't ask for my number.
<bot>: Bought a phone. Employee finds my number and texts me after I leave. Good customer service, eager employee, or is this guy potentially interested?