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 one solid person married to another solid 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 aren’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 still need a mother. 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.
Marry out of strength, not weakness.
If you marry out of need and loss and lack, then you will grow into that and get even more needy and even more empty. It will be like getting crutches for your broken leg. You 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.