It saddens me that 'we' (society) place expectations on young people so they grow up thinking that to be coupled is the default state and to be single is abnormal.
As a child, you're 'single'. Then many books / films / songs tell you that you should be looking to date and couple up. Then get married and have children. Relatives start teasing you about your bf / gf when you're about 12. Then they start asking if you're dating / are you getting engaged / when's the wedding. We grow up thinking that to find someone else should be a focus, and that if someone wants us it's a measure of success.
Then if friends start coupling up, we feel pressure - why are we the odd one out? What are we missing out on?
So people couple up much younger than they probably should. They risk choosing the wrong partner. Because they aren't yet sure he they are themsleves, so how can they know who the right partner is? And also because they are rushing, under pressure, to find someone. They accept someone who isn't perfect for them, just so they have a 'partner'. The risk is greater if they feel pressure to have children. And they stay with unsuitable - even abusive - partners because they dread being single. Partly because society has told them that single is odd, that it's some sort of failure, and partly because they've never tried being single as an adult and assume they can't live like that. It's a frightening prospect.
So then we have adults who are scared of being single. When actually single is the default position. It's how we start out. And we should only stop being single when we find someone who is perfect for us.
I know this isn't answering your question Op. Sorry for the lecture (not aimed at you!). It increasingly frustrates me that society has created this situation where you have to learn how to be single, when you were possibly rushed into being coupled in the first place.
Single is 10000 times better than being with the wrong person. We need to be better at showing our children that, and to teach them that single is great. It's the best way of learngin independence, learning who you are, learning your boundaries, learning what you want and need from a partnership, making you a more rounded person, and therfore - if you choose to couple up - making you more likely to choose the right person, and to walk away when someone treats you badly.
*I know I've made some generalisations, and also that things aren't as bad as they used to be in respect of societal pressure, but it is still definitely very much there.