That you are able to arrive at compromises with your partner

That you have the same interests and hobbies

That you help and support each other whenever there are problems

That you speak to one another and always know what’s on the other’s mind

That you get on well with the friends and family of your partner and vice versa

That the sex life is satisfactory for both partners

That differences of opinion can be discussed without putting the relationship at risk

That you both have the same ideas about how to handle money

That you give each other space for personal privacy