How should i react?--my ex or the new guy?

i went out with this guy this year we were best friends b4. we went out for 2 weeks and he broke up w/ me because "it felt weird" that's what he said. friends from the volleyball team caught him kissing another girl and they told me but he didnt know until 3 months later. we quit talking for 4 months but he's moving to another country so i didnt want 2 leave things on a bad note. we're cool now and he subtly hints here and there that he wants to get back together a few days ago i stayed after school for volleyball practice and our shorts are spandex (so they're SUPER short & SUPER tight)this other guy kept staring @ me i thought it was cuz my shorts were so short and tight but since then he has done nothing but try to get to know me it's not because of what i wear because i have worn nothing but hoodies and trackpants since just 2 c i walk to my last cl with my x but on the way the new guy walks w/ us and holds my hand he knows that the other guy is my ex wut do i do? PLEASE HELP!!!