Most Helpful Girl
Move on completely, not to the new guy. You still love your ex so it's unfair to the new guy. Personally, it looks like your ex was cheating on you with this new girl. If he acted that way, it's clear that something has just, changed, and he no longer feels that way about you. Save yourself some heartache and just cut off all ties with your ex, while giving yourself some much needed alone time. Figure out who you are again, do what's best for yourself at the moment and just give yourself time away from relationships. Have fun and just give yourself time.