<human>: I (25m) met my now ex girlfriend, Kate (25f) on the first day of university, about 8 years ago. We were friends and fancied each other for a couple of years until we finally got together.

We lived together for a couple of years until we both had to move apart for graduate jobs in our subjects. We tried to make it work and to start with it did. We were in love, saw each other every weekend and it was great.

2.5 years of long distance took its toll and we both struggled finding relevant jobs in the same area. I felt like I hadn't experienced much of the world and in some ways she held me back.

The hardest decision I had to make was breaking up with her... We were both hugely upset, we had been each other's world for nearly 7 years!

A couple of months after breaking up I found out through mutual friends that Kate had been continually sleeping with her housemate while we were together. I used to visit there house and sleep in her bed where it all happened!

Obviously devastated from this, I was angry, hurt, depressed and low. Kate was hugely apologetic and said she got led astray by some stupid fling and regretted all of it. It was greatly out of her character. We spoke a little after and even met up once or twice.

We've now been apart nearly 8 months. I haven't seen or spoken to her in about 5 months. I know I should hate her and want her out of my life for what she has done to me. 

I've been with other girls and dated here and there, but I still think of Kate. I miss her. Even just as good friends.

Condense the text into a few key points
<bot>: Broke up with gf of 6 years. Later found out she was cheating on me with her housemate. But still miss her. Help.