First point If she puts condom on you this means she does not have hiv and she is worried to be infected from you by hiv and mostly she does same with others .
Second point 3-5 seconds unprotected vaginal sex is very short time to get infected by hiv .
It is not 0 risk but extrely low risk exposure .
Take Ag/Ab hiv at 4 weeks post exposure till that time alwes keep busy and try to not think about this exposure.
I had the exact same thing happen to me. Same amount of time and everything. Except that she didn’t want to continue after she saw it broke. Wiped me down and all, just like you.
I got PEP prescribed. I am not understanding how this is “no risk.” We both inserted ourselves in, with a condom, but it immediately broke. Meaning we were unprotected.