Absolutely not. It sounds like you and your new guy could call yourselves sex partners. I for one am not a fan of sex partners but I don't hate on them either. You could meet someone and befriend them and within a reasonable amount of time you could be very attracted to them and after having sex with them you could easily get attached to them because you both invested into the relationship and you don't just want anyone to mess that up.
Cheating ultimately in a relationship (From what I have observed through others through the years again not personally) ruins everything. Eventually things will surface and when the sh.. hits the fan it doesn't look good from either side. Now that person has a rep. for not being trustworthy in a relationship and it will take a while before they can clean up that rep with someone else.
However this doesn't sound like a relationship. Emotions are powerful and therefore I don't like to hurt people and I don't enjoy being hurt. I'm not knocking your situation,but I am being straight up with you from my perspective. You can not be hurt when there is nothing there, however in most cases one person will start to feel differently later and then it gets very complicated and then someone gets hurt. My suggestion, if you don't want to get hurt, respect yourself and stop while you can and befriend someone that you feel special with and you feel them and they feel you.
Word to the wise (in slang) a real man who FEELS YOU (loves you, cares about you, and can relate to you), or (fantasy speaking) would move a mountain for you, WILL ALWAYS tap that ass, give you a thousand XOXO, licks especially where it counts (ladies you know whatz up) any and everywhere and between BETTER than any dude that just wants to tap that ass. You're only on his mind for the minute.
Where there is passion, there are no limits for pleasure because he has strong feelings for you. When it's all lust, as soon as he cums, he's thinking about something else or someone else or a least he will be. No passion, no commitment, sounds like a breaking up is in the forecast. Find someone who you're crazy about or at least like a lot so your chances of getting hurt are far less. However if you just like the game (which isn't emotionally healthy) , go ahead but don't make any expectations. No love, no commitment just sex, sounds like you both are predestined to separate. Not for me so you both have to make up your minds what you both want. THAT'S MY WORD.