To get along with
If you get along with someone, it can mean you both like each other and have a lot of things in common.
We have known each other for more than a decade. That’s because we get along well with each other.
To get on well with
You can also say you get on well with someone if both of you like each other and become friends.
We’ve kept in touch with each other since we first met as we get on well with each other.
To keep in touch with
If you have made a friend that you get on well with, you might want to keep in touch with them.
I still keep in touch with my friends from my previous job. We meet up now and then.
To hit it off
To hit it off means to instantly like someone.
They only met yesterday but they hit it off and have already started making plans to go on a holiday together.
As thick as thieves
If two people are as thick as thieves, it doesn’t mean that they don’t get along. It actually means they are very good friends.
People say we’re as thick as thieves and I agree. We’ve never ever squabbled since we became friends.
…..you can also experiences ups and downs in a friendship
This means to have a very big disagreement with someone and stop being friendly with them.
I had a fall out with her recently and after that, we’ve not spoken much.
Not see eye to eye
This can be used when two people don’t agree on something.
They do not see eye to eye on a number of things so I can’t see them staying friends for long.
To burn bridges
This can mean to destroy any relationship you have with another person, even as a friend.
The opposite is to build bridges which is used to talk about developing relationships, including friendship, with others.
It’s so much harder to build bridges than burn bridges with anyone so we should be very careful when we make friends.
To show one’s true colours
This idiom is used when talking someone’s actual personality as opposed what they seem to be.