You should live with someone only if you can't live without them. Living together as a couple is a highly unnatural activity. It starts as a desire not to have to go home after sex and ends up as a bulk sock-purchasing policy.

Moving in together is the most fraught time of living together. This is where the man discovers that 90% of women's underpants are large grey freezer bags and the woman discovers that men have only two pairs in total. You also have to start buying things together, and soon realise that there is no area of compromise between Lincoln biscuits and Hobnobs.

In any couple, one person is tidy and the other is an absolute grub. The person who is tidy is grumpy