When the thoughts creep in, deliberately interrupt them. Remind yourself of the reality: she is your partner’s mother, she is completely off-limits, and pursuing this path leads exclusively to pain for everyone involved. Do not feed the fire by stalking her social media or daydreaming. 3. Evaluate Your Current Relationship
Use the mom as a mirror.
The "so what?" of this situation depends entirely on your level of self-control. My Girlfriend-s Mom Is Much Finer than Her- So ...