<human>: Scared as fuck for asking this. I've been with my partner since college and love everything about her. She's reiterated to me that she's completely happy, and has no idea why she is feeling some type of physical attraction to men she regularly comes into contact with at work/gym etc. She feels guilty and doesn't know why it happens, and wanted to be open and talk to me about it. I asked if it is a common recurrence with the same person but she said no. She also mentioned how she's somewhat enticed by the unknown, or what "could be". I mean, as a guy, when I see a 10/10, I just think to myself "yea that girl is hot", but I could never imagine them replacing my wife as a life partner. Is this common in marriages? I feel helpless as there is nothing I can do, really.

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: Wife seems like she might be at the beginning stages of straying away from marriage? No clue. Claims she's 100% happy.