SB got married: now we’re having an affair

I (M47), was seeing my SB (27) for 1.5 years. We started seeing each other after she broke up with her bf and have been meeting maybe once a month, PPM. We instantly clicked and had a great time and great sex.

In the meantime however, her bf convinced her to come back with him and they got married few months ago. She’s still meeting with me, but our relationship changed: there’s no more PPM involved, it became a „regular“ affair.

She loves her husband in every aspect, just the sex is lacking. In this, she’s exactly the female version of me..

Just wanted to get this off my chest, I have nobody to share this with.