4 year gf. We had a huge fight, her fault mind you, and didn't talk at all for 2 weeks. One day I approached her to make amends. Later, I found out, the next day she went to a guy's apartment for dinner. She had lunch/dinner with this guy several times during those 2 weeks. She claimed I didn't contact her and that was my fault. She said she knew he was interested but she was lonely and liked the attention, but nothing happened. She probably lied and kissed and/or fucked him, but at this point it doesn't matter anymore.

She refused to answer specific questions about it and basically humiliated me in the process. The very next day I came to her to make things better, even though the fight was her fault, she goes to another dude's place? I want to crush her.

This happened 5 months ago. Since then she's dead to me. But I haven't told her that, instead I have been using her for sex and seeing other girls. She lives 1 hour away which makes that very doable and we only see each other weekends.

Here's the catch: she's 31. My plan is to waste her time. She's expecting marriage and mentioned several times how she can't afford to waste her time. I want her biggest nightmare to come true. I want to use her as my sex doll for another couple years, while promising her a future, and at the same see other girls/find another girlfriend in my town.

She works some weekends, which means some weekends I don't even have to see her. In the past 5 months this has worked out well, I have fucked 2 different girls and almost made a gf out of another one.

I want her to be 33/34 and then I'll just all of sudden disappear. She'll find herself with no boyfriend, no marriage or kids in sight. I have thought about it a lot and even if I have to buy a weeding ring and announce it to my family so that it buys me enough time to execute this, I'd be willing to.

The biggest hurdle I had in these months was managing not be seen with her. It was difficult at first but I've figured out to avoid certain places and certain times. A waiter from a restaurant we regularly went to saw me on the street with another girl, needless to say I'm not going there anymore.

What do you think? Any suggestions on how to make this even more brutal on her? I've figured that short of physically beating her this is the best I can do. Or you can tell me I'm crazy and wasting my time, that's what my closest friend told me. Just want to know what's your reaction to this.