For those who have not seen How I Met Your Mother, you have probably have never gotten what people were saying about Lily and Marshall. They are the one couple in most people's eyes that are defined with relationship goals. Now many people see this in different ways so I am going to say some of the reasons why they are relationship goals.
It was love at first sight!
This is something not a lot of people can say and have it be true for a life time.
They didn't need a fancy way to get engaged.
Marshall basically spit out the question out of nerves to open a wine bottle and Lily just screams yes! There was probably no need to ask after dating for 9 years at that time.
When they are sassy, they bring it!
That one episode of Lily showing Marshall how to find his inner sassy woman really proved when they have problems together, they can be sassy together.
Sometimes they can be the same person.
Whether it's saying the same thing or going somewhere at the same time, it's either adorable or creepy, but all relationship goals.
Every high-five is accurate
Usually it's when they make comebacks to the gang.
They laugh with each other,
Make mistakes with each other
Or one making the mistake to the other,
And will still act weird around each other whenever they have the chance.
or wear matching costumes.
They have a fancy way of stopping arguments.
If you can't do something like this, start thinking about it.
They even brag about how cute they are,
Act cute every episode in some way,
and the amount of time they've been together.
Which I can definitely say is a very long time in my opinion.