<human>: After breaking up with my girlfriend last year, I thought that would be the end of any kind of relationship with her, platonic or otherwise. About eight months after the breakup, we started talking again, awkwardly at first, but soon began to talk normally like we used to. It's now been thirteen months since the breakup, and we have recently started having commitment-free sex. We're basically good friends who like to go at it, and I can hardly believe it. A year ago she couldn't even acknowledge me. Is this too good to be true? Has this happened to anyone? If so, how did it turn out? This is my first experience with anything like this.

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<bot>: I'm now regularly having sex with my ex-girlfriend of a year ago, no strings attached (or so we seem to have agreed). Potentially problematic? If so, how should I go about avoiding compounding the issue?