I may have a different view. I think the cousin #1 is caring for you. That quote can be a motivational one. Some people tend to give their gratitude using quotes. I honestly think she means that you can go anywhere you want to. I think it is a misunderstanding.

I agree that Cousin #2 is not good. And whoever passed your address to him, should be warned. And yeah, they are disrespectful to not telling you.

I don't know whether they betray you or not. If they are the toxics, you have the rights to walk away from them.