Sorry she made that bad decision since she's in a relationship with you That probably hurts. You can post about this type of thing related to your feelings in the MedHelp Relationships forum. As to std's, unprotected oral sex is very low risk. They normally do not request you test unless you develop symptoms of something. She would only have been able to transmit something to you via the oral she gave (not vaginal, she didn't have vaginal sex, so . . . that's not a concern here). Kissing isn't a risk for anything other than hsv1 which you already have along with 80 percent of the planet. So, she had a low risk and giving you oral sex was a low risk for you. Test ONLY if you develop a reason to.