Is he cheating on dating sites
"Time" magazine reports that a man who depends on his wife’s income is five times more likely to cheat than a man with an equal wage.
Your husband may go on dating sites to seek out opportunities for escaping his life or feelings of financial inferiority.
Could this dating spam have come from your boyfriend's former adult dating site use?
It's possible, yet more likely that your cell number got thrown into some database somewhere (similar to emailed internet dating scams).
Some men with high-paying jobs cheat just because they can.
"Time" magazine reports that high-income jobs can provide cheating opportunities, such as long hours, travel and disposable income.
Once you've worked through both of these processes, you'll have a better idea a to what you have to let go of within yourself, so that you can honestly trust your partner (and in turn, yourself), to never have to question his fidelity or honesty again.
The other possibility in your situation might be that your boyfriend left his own phone somewhere, and you grabbed it, saw the dating spam, and were confused as to where it came from.
This is a much more serious situation - but not why you might think.
Therefore, to answer: what you've received is most likely spam.
A quick search for found that they've used several Florida-based Google Voice phone numbers to spam random cell numbers with the message, "Hi I put a pic on my page on just sign in and check it out ;-)".