TL;DR - Love should be the foundation of romantic relationships. However, other factors also have to be in place for the relationship to be successful.

• Let's think of love as the sense that someone else's wellbeing is more important to you than your own. With this in mind, human relationships are highly susceptible to outside pressures like cultural, familial, or geographical differences. Whether two people are able to sustain a relationship despite such things also depends on their previous experiences and how their personalities might have been shaped by factors like their upbringing.

• There's that classic idea of 'meeting the right person at the wrong time', which I think means that the love is there, but that outwards pressures are working against it. In this situation, love alone is not enough.

• I would argue that love itself is not very practical - it can even be irrational, like how wanting the best for someone contradicts the fact that you might not be what's best for them. Practical elements - having similar values, being at similar points in your life - also need to be in place.

A healthy relationship also need standards.

Completely unconditional love has the potential to be a very dangerous force. It's not dangerous in and of itself, rather, it's risky. It's how people get wrapped up in horrifically abusive relationships. Sometimes, we love people that we simply SHOULDN'T be with; Love is NOT all you need.

Self love is all you need to live happily.

• I look at this opinion with self love in mind. Not necessarily a love of another person, or a love for something, such as an idea or a materialistic object even. If you are to succeed in anything, whether that is in a relationship, in your job, in your life, you need to love yourself. With self love comes so many other things, such as confidence and determination.
• Everything that you may need stems from self love, and the mindset that it gifts you.
• So, love is all you need. Self love brings everything else you may need.