Guides to open relationships and non-monogamy

Where to start

If you are new to any of this, the vocabulary is the first obstacle, and it is a bigger one than it should be. Open relationship, polyamory, ethical non-monogamy and relationship anarchy are used interchangeably in casual conversation and describe genuinely different arrangements. Two people using the same word for different things is the most reliable way to waste each other's time.

Start with what is an open relationship, then open relationship or polyamory for the distinction most often confused. Ethical non-monogamy explained covers the umbrella term and what sits under it.

If you are having the conversation

Two guides cover the part most people find hardest. Raising it with your partner covers the initial conversation, including what your partner is likely to hear in the first thirty seconds and how to disconfirm it quickly. Rules and boundaries that hold covers what to agree once the answer is yes, and which popular rules have a poor record.

If the underlying question is whether these arrangements last at all, do open relationships work sets out what the research actually finds, with the caveats it deserves.

If something is going wrong

Jealousy and what to do with it treats jealousy as a signal with specific information in it rather than as evidence that you are doing this badly, and covers the distinction between jealousy that eases with information and jealousy that is telling you something accurate.

Unicorn hunting explained is the guide to read first if you are a couple looking for a third person. It is the most common way couples get this wrong, and almost nobody doing it realises they are.

How these are written

• No filler. Every guide covers ground the others do not, and none is padded to a word count.
• Honest about uncertainty. Where the research is thin or the community disagrees, that is stated rather than smoothed over.
• Practical over aspirational. These are written for people making decisions, not for people who want to feel good about a lifestyle.
• Legal information is background, not advice. Where law is mentioned, it is general context, and the country guides carry the same caveat.

The questions these guides keep answering

A handful of questions come up so often that it is worth stating the short answers here, with the guide that covers each in full.

• Is an open relationship the same as cheating? No, and the line is a single fact: whether everyone involved knows and agreed. Covered in what is an open relationship.
• Is polyamory just an open relationship with extra steps? No. One centres on an existing couple, the other on multiple romantic relationships that are each expected to matter. Covered in open relationship or polyamory.
• Will this fix our relationship? Almost certainly not, and the belief that it might is behind a large share of arrangements that end badly. Covered in do open relationships work.
• Does feeling jealous mean I cannot do this? No. Long-established practitioners feel it too. Covered in jealousy and what to do with it.
• Can we make rules about a third person? Not really, because they were not in the room. Covered in rules and boundaries that hold.
• Why does everyone say couples are a problem? They are not, but one specific pattern is. Covered in unicorn hunting explained.

If you are already settled in this

Two guides are aimed less at newcomers. Open marriage explained covers what genuinely changes when the relationship being opened is a legal one, including the children question, the estate planning that long-term multi-partner households tend to do, and where non-monogamy can still surface in legal proceedings even where it is entirely lawful.

Relationship anarchy explained covers the position that no relationship should automatically outrank another, including the assumption that romance outranks friendship. It is more coherent and more demanding than the name suggests, and it is the term members most often encounter without a clear sense of what it commits someone to.

All ten are listed below. There is no reading order beyond the suggestions above, and each stands on its own.