<human>: I have been with this girl (lets call her Anne) for 6 and a half years now. We had a lot of issues in the past but we managed to get through most of them. We still fight a lot and we still don't agree on most things.
She was very jealous at the beginning of our relationship. After that she had a very long depression phase (3 years). 1.5 years ago she got out of that depression but we are left with a dead bedroom issue and a very routinized life where we can't find the will to do anything together. She cheated 6 months into our relationship, and i cheated after 2 years, and then again a couple times later on. I know about her cheating (she confessed), she doesn't know about my infidelity.

I had a lot of questions in the past year whether i should stop the relationship or not. But doing so always was overcome by the hardship of doing so (we live together, she has nowhere to go, since the apartment is on me, she has a lousy job, and on top of that i got comfortable).

Last weekend i was in a team-building, where i got to talk with a couple of girls there and i realized that i am staying in this relationship i don't want and that we don't actually love each other, and we deserve to be happy instead of miserable.

Don't get me wrong, we have good times and we can live with each other quite ok but i don't feel happy, and right now i have no idea how to tell her "I don't love you anymore" and i want us to break up without crushing her or hurting her with my past infidelities just to do the breaking up.

Summarize the given text in a few sentences.
<bot>: I have no idea how to break up with my girlfriend. The hardest thing to say is _I don't love you anymore_, and mean it.