Friendship or slow drift: the signals worth noticing
Genuine friendship is not secretive and it is not competitive. It survives daylight: you meet her, she meets you, the friendship happily includes both of you, and your partner's account of it in the morning matches the version at midnight. A drift looks different. It runs on things that are hidden or minimised — a conversation deleted, a lunch not mentioned, a nickname you weren't supposed to hear. It runs on comparison, subtle and often unintentional: she understands his work, she doesn't nag about the boiler, she is where the good mood goes.
The most reliable warning sign is not attraction, which is ordinary and not a crime. It is where the complaints about your relationship are going. When someone's frustration with their partner is being processed with a third person instead of with the partner, intimacy quietly reroutes. That is how people find themselves somewhere they never planned to be, still insisting nothing happened.
How to raise it without turning it into an accusation
Pick a calm moment that isn't the night of the friendship in question, and lead with your own experience rather than his behaviour. Something like: "I've been feeling a bit on the outside lately, and I want to talk about it before it turns into something I'm resenting." Then be specific about what you noticed, without building a case file. One or two examples land; a chronology feels like a prosecution.
Then listen to the answer properly. If he is defensive but engaged, that is usually discomfort, not guilt. If he refuses to acknowledge that you could be affected at all, or if the response is contempt, that is worth taking seriously — not because of the friendship, but because of what it says about how your feelings are handled generally.
