i need to help / advice / just someone to talk some sense into me

im currently in the process of leaving behind a haram relationship with some who i’ve deeply cared and loved for , for almost 2 years. i need to cut it off more cleanly, and im just so worried about how upset she’ll be. i care for her so much, and it hurts me that she’ll be hurt. but i know cutting it off for the sake of Allah means most above absolutely anything. so can someone please help / talk to me about it, just some advice, or just someone to listen to what i have to say and vice versa. JazakAllah