need girl advise😭😭😭

So my ex broke up with me and he was my first love and I'm deeply in love with him,recently he led me on met up with me and told me he's loves me then after didn't speak to me and said it wasn't the same and just left.We went through so much together and for him to just leave confuses me.Anyway so today I discovered he has a new girl and they got together the day we met.I have anxiety and he helped me through a lot and hearing that he's moved on and completely left hurts me so bad