When you have half a person married to another half a person they don’t make a whole, they make a half. When you have a whole person married to another whole person they make something amazingly strong.
People shouldn’t try to marry to find their other half. They should marry to get even stronger. They shouldn’t marry in order to have someone “complete” them. If you have to have someone else to make you whole then you weren’t whole to start off with.
If you want to get married so she will cook and clean for you, you don’t need a wife – you need a maid. If you want to get married so he will protect you and keep you safe, you don’t need a husband – you need a guard dog. If you want to get married so someone will cheer you up, you don’t need a spouse – you need a therapist.
If you marry out of need and loss and lack, then you will grow into that and get even needier and even emptier. It will be like getting crutches for your broken leg. You’ll go years with those crutches, and your leg never gets used and gets weaker and weaker. Then when the crutches go away, you can’t stand at all. If you are only half a person, then what will you do when your spouse dies?