u/UsualPhilosopher9406

I’m travelling to Charleston to be with my boyfriend for roughly 2 1/2 months. I have some questions to help calm my nerves (yes they may be stupid)
1)I personally don’t have a lot of money but he will be working and providing, will customs have an issue with this?
2) is travel insurance legal requirement?
3) will I be turned away for a 2 1/2 trip on a brand new ESTA ?