Protected oral means the risk is really low.
The hsv1 IgG test misses a full 30% of infections, so you could have hsv1 already and not know it. 67% of people under 50 have it globally, and the vast majority will never get symptoms.
If you don't have symptoms after oral sex, I wouldn't even worry about it. We don't have transmission stats on hsv1 like we do hsv2, but since you used a condom for oral, your chances for anything are slim to none.