What does it mean,if someone tells you he/she is always there for you if you need someone to chat with?

it means that they don't currently want to chat with you anymore and that they promise to avoid you in the future.. OR

it means that genuinely they are HERE for you and will listen to you whenever you need..

it's hard to say unless you actually KNOW the person, let me just say a real friend that you know will be there..

Usually they don't mean it, and when you go to them they ignore you or leave you 🙃

That he/she is a very good friend.

that theyre nice

that they care about you

Exactly that?

Not much to me really. Words can be as empty as a shopaholic's bank account.

Reaching out, letting you know that if you need a friendly chat they are there for you 🙂

That if you have things you need to talk about, they'll listen, lend a shoulder, maybe advise.