I've recently started listening to relationship/dating podcasts (reputable ones based on research and practical coaching experience) and they tell a similar story to what the last paragraph says: find someone who is similar to yourself in as many ways as possible, because you will understand each other much better and your relationship has much higher chances to be lasting and fulfilling. The author had to try all the other ways to to be able to let go of them :)
I had to truncate the title to hit the character limit, unfortunately.