Earlier quoted context omitted.
'Need' is not always logical. You buy a car when you need one - and look desperate to the car salesman. But you need it, so you shop. More helpful advice is, how to shop intelligently when needy.
You need a car to do what? Most commonly, to transport your body from point A to point B. You can also consider other alternatives and pick one that (you think) works the best. I doubt that there is such a thing as "need to be in relationship", very often it is a cover for some other, deeper need, like "need to not feel alone", "need for social recognition", "need to feel secure" and so on. And unless that deeper nee…
Why is this such a big problem? We are social animals and like to be around others. And yes, part of it is social recognition, we mostly do what's expected in our culture and don't like to be the odd ones. Many people like to boast how unique and non-conformist they are, but deep down most of us want to be accepted.
You could say there's no need for career achievements either, because then you're just a workoholic. There's no need for anything in particular.
I don't like this sentiment that everyone must be a rock and steel-strong independent individual who never has to rely on others/relationships/family/society and just cuts through life like a knife through butter. Most of us aren't like that and if you listen to any successful person they will tell you how much they can thank other people (spouse, family, friends) for their support and how they couldn't have achieved the things they did without that support. The totally individualist mindset is not healthy I think (for most people).
Of course I don't mean you should be desperate. But people in our lives are not just "supporting actors" in our movie, but a lot more important. They shape us in many ways.