<human>: Summarize the given text in a few sentences.

I am currently living with my gf Allie. She is wonderful and beautiful, but I have been wanting to cut it off recently. I'll provide some background info. We have been dating for 2 years and 1 day before our 1 year aniversary she cheated on me with another guy. It wasn't sex, but it was hardcore emotional cheating and kissing. I was destroyed when I found out the next day. I promptly broke up with her and I caved and top her back after a week. The relationship has had its ups andbdoens since then...mostly revolving around my insecurities after she cheated. 

Fast forward to today. I just got into pharmacy school and I am currently living with my gf. I always wanted to immerse myself in pharmacy and I really want to live with other first year students. Allie assumed we were gonna live together throughout the 4 year pharmacy degree and I DO NOT feel the same way. To make things worse, her parents already paid for a vacation that includes me for this summer....against my wishes. I didn't feel comfortable with her parents paying especially with how I feel about the relationahip. 

Overall, I just want to let her go in a nice way without hurting her. I dont see a future for us as we have completely different life goals and deep down I cant get over the cheating. How do I let her know this??? I just want to move on and I feel like she is just going to hold me back professionally in my program and emotionally due to my insecurities with her. Part of me still loves her and that's why it's so hard. Any advice??
<bot>: I got into pharmacy school and  want to leave my gf who cheated on me in the past. We live together and her parents love me.