NO! Just move forward. We guys are fixers but there is no fixing that. If she brings it up, listen and validate.
Look, you didn't do anything wrong. In a normal MR a H being interested in who is texting his W what is not something to apologize for. So don't apologize. Just resolve to do better from this point forward.
M(53), W(54),D(19) M-23, T-25 Bomb Drop - Dec.23, 2017 Ring and Piecing since March 2018