Life is just confusing me!!

I have been thinking so deeply into this situation the past while. I think it's time I block and delete this other guy. For the longest time I couldn't put my foot down I think was because its that " flirtatous thing going on". The thought of having someone esle out there that cared? Not mattering who it was. I had my entire pro's and con's thought. It would be different if he were a friend of a friend? Then I'd at least get somewhat of a background on this fellow? But I know nothing about the guy. The girl in the photo? could most likely be his " baby's momma " or something in that department. I don't think I can allow myself to turn into a booty call ( thats just degrading ). Or even worse be used and abused , then shared amongst his friends or something.............