The friend you met through a friend, and what happens when they leave

Both approaches to friendships held up by a third person work. What differs is what they cost you, and the cost is what this sets out.

How mediated friendships form

A great many adult friendships begin because somebody you already trust vouched for a stranger by putting you in the same room. That vouching does real work, since it removes the assessment period and lets two people skip straight to behaving like acquaintances.

For months or years afterwards, all your contact may happen inside gatherings the connector arranged, at times the connector chose. The friendship can feel completely genuine while never having been exercised outside that structure even once. Neither person notices, because the supply of occasions is steady and nobody has any reason to test where it comes from.

What the connector was actually providing

The connector supplies invitations, context, gossip and a running explanation of who each of you currently is. They also absorb awkwardness, since a group of three has somewhere for a lull to go and a pair does not. In many cases they are the only person who has your contact details and theirs and the habit of using both.

At the kitchen table, none of this is visible while it works, which is why the structure only becomes obvious once it is removed. The friendship is not fake; it is simply resting on a support that neither of you put there.

What removal looks like

The connector moves abroad, has a baby, changes jobs, falls out with one of you or simply stops organising things. For a while nothing happens, because you both assume the next gathering is coming and neither of you is used to being the one who proposes.

The first missed season is barely noticed; the second one produces a vague awareness that you have not seen each other in a while. By the third, contacting them directly feels like a slightly odd thing to do, which is enough to prevent it happening. The friendship then ends without any event, and both people would say, accurately, that nothing went wrong.

Predicting which ones survive

The single best indicator is whether the two of you have ever met without the connector present, and how many times. A second indicator is whether you have any independent shared reference, an interest, a neighbourhood, a common problem, that does not route through them. A third is whether you have each other's numbers and have used them for something other than confirming an arrangement somebody else made.

If all three are absent after two years, the friendship is almost entirely structural and will not outlive the structure.

That is worth knowing while there is still time to change it rather than afterwards.

Converting one deliberately

The conversion is nearly always a single invitation, sent by one person, for something specific and small that does not involve the connector. It is easier than it feels, because the vouching has already happened and the other person has no reason to be suspicious of the approach.

At the kitchen table, do it while the group is still functioning, since an invitation sent during an active friendship reads as warmth and one sent after a two-year gap reads as strange. Mention the connector by all means, but do not make the meeting about them, or you have simply held the same gathering with a gap in it. One meeting is usually enough to establish that the pair can exist independently, after which the friendship acquires its own history.

Some ties are worth keeping and some are worth setting down, and only you can weigh which is which.

When the connector has fallen out with somebody

The awkward version is a group where two people have stopped speaking and everyone else is quietly working out what they are allowed to do. You are entitled to keep both friendships, and saying so plainly to each of them is better than managing it by stealth. What you should not do is carry information between them, since that turns you into an instrument of a conflict you are not part of.

The unglamorous truth is that some people will find a divided loyalty intolerable and will effectively ask you to choose, which is information about them rather than a rule you must follow. Groups often lose more members to the invisible management of a falling-out than to the falling-out itself.

Side by side

The takeaway

Ask which of your friendships have never happened without a third person, and invite one of those people out this month.

The apology that works is specific, unhurried and free of the word but.