Congrats! You’ve managed to bag a guy who is either a. a brilliant liar, b. a bona fide sex addict, c. Callum Best or d. some thrilling combination never before seen by mankind.

First things first. I’m assuming that if you’ve “had fun with each other,” that means sex. Get thee to a clinic forthwith and have them run the full panel of diagnostics for STDs. I don’t care if you’ve used a condom every time with this guy, or you’ve only had oral sex. Condoms break, and genital warts have a charming habit of dodging even the strongest of preventative measures.

Now, let’s look at the man’s character. As much as he’d like you to believe that 30 is the new 50, here’s a reality check: At that age, many unmarried guys are just getting started when it comes to playing the field. Cheaters are cheaters. Sluts are sluts. Unless you are absolutely convinced that this guy has somehow been born again—and if you’re writing this letter, you aren’t—he isn’t worth the drama. You can do better.

Leslie Gornstein is a Los Angeles-based entertainment reporter and E! Online's resident entertainment question-and-answer columnist, the Answer B!tch. Gornstein has built a fan base of millions, many of whom follow her every syllable during her weekly podcast and satellite radio show—she knows everything.

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