Boy help.?

So I am 15 years old and I am talking to two senior.. my boyfriend broke up with me after 6 months and he texting me constantly and saying he wants me back. But I am very fucked up in my mind I haven’t eat all weekend but when we broke up after 2 days he was flirting and touching this girl I don’t like. But he also tells me and we aren’t dating I can’t talk to guys bla bla bla. But the other guy all I heard is he will fuck me and leave or he’s a player but so far he’s being sweet to me helping.. it’s also my ex’s friend... I am hanging out with the nice guy Saturday alone and I am a little scared...

what should I do.?