I think friend #1 has a controlling bf and he’s jealous. He might give her a hard time about her friends. My ex was like that and it was easier to just stay home and disconnected than to fight with him about who’d you go out with, where did you go, did any guys hit on you, etc.,. ☹️ Luckily my friends took me back after I broke up with him.
Friend #2 doesn’t sound like much. Lots of people just like to collect FB friends and maybe he just wants to feel a part of her past since you’ve known her so long.