Looks like a scam because I got an email version with the same number, which lead me to this thread, but different name and email. Same type of message, though, and I don't visit any dating sites.
This email was sent on June 20, 2014 from "gizela grissom <
[email protected]>":
"Heyyy I'm just a 21 yr old gal responding to your post on that dating website. I'm def down to fool around. Text me on 2562947856 - Hope to hear from you xoxo."