Search Results: get back at ex after breakup

Its been a year since our break up. I was moving away and didn't want a long distance relationship also didn't want a relationship with a time frame. She was pretty hurt then told me she was willing to try but then opened up and said she wanted to break things with me because i wasn't making enough effort with her and i also stopped her from her life. Which i did. She said she was ready to move on from me. Anyway, we had eachother on snapchat because its the only form of socials she has, i watched her stories after the break up i watched them and started to miss her and regret the breakup. I was so tempted to not watch them but i couldnt help myself she made me laugh in a funny way, she is funny. Anyway 3 months goes on and she must have found out i had hung out with my ex before her and freaked out and took me off snapchat. I was shocked. I didn't do anything with my ex, just hung out at a party. My older ex then tried to get me back and i told her no. It got to a point where now we dont have eachother on facebook. Its been a year and im back in my other exes town, i let her know im back, and she wrote me an email saying that she 'had to take me off snapchat because she still cares about me and always will and didn't want to play games because its childish, she also wished me well and told me that i deserve the best and to be happy.' I fucking miss her so much and know i screwed up. I will now be working at the same place as her every month,

How can i try get her back without looking so desperate? She has no socials that im connected too. Im lost, i want her back but im stuck, what should i do when i see her?