Search Results: how can i prove to him i love him still

Okay so cliff notes:
-Dated girl who got out of a relationship (didnt know till later)
- we date, things are fine, she however eventually develops feelings for ex and i have to let her go
- i talked to her best friend and she said my ex didn't even want to break up that night and that my ex did still have strong feelings for me and the ONLY reason she broke up was because its not fair to be in a relationship but have feelings for someone else

Today I was talking to her briefly, because we're sorta friends, and here's how the convo went:
her: i feel like you can move on from me
me: I dont want to move on honestly, i feel like we just met at the wrong time and this was just an amazing relationship in general for me. i dont understand what you mean by that?
her: you once said that guys block girls to help move on, couldnt you do that to me to?
me: do you want me to move on? is that what you're trying to get me to do? be honest
her: moving on isint something you force yourself to do, and i can't make you move on. in all honesty i feel like you will in a couple months
me: why does it matter if i do or dont? i may or may not but i wanna know what you meant by that
her: I don't know.. i just feel like you say you loved me but i think in a short time that may dissapear
me: nah it won't, trust me. i told you in a couple months of dating you'd believe me and on everything else, but unfortunately we're not together for me to prove it, at least for now
her: im sorry