>>25
The answer to your problem is quite simple; when I asked you who you wanted you said "the sister", not your gf.

That's it. That's the whole fucking thing and you better believe me. The "heart" of anyone will always sprawl out like it doesn't give a shit, but you can chose to deny or indulge its impulses.

You say you have denied them? I don't fucking believe you. I know myself and through me I'm quite certain I know you too. Fundamentally people aren't all that different. If I want to allow my feelings for someone and even by an oz. allow them through, they will grow bit by bit, and eventually become a burning passion. At this point it will be very hard to turn your face on it, and you will be tempted to let it reign.

However if I for some reason find it inconvenient to have feelings for someone, I can shut them down. For example if someone turns out to be occupied or becomes occupied, my morals are strong enough to allow me to kill those feelings instantaneously. That's because morals mean so much more to me than love. In fact, I love justice and truth, I have a burning passion for it. It gives me goosebumps. I want to have sex with the fucking law. Why? Because I know it exists to give us the well-being and peace of mind we all look for.

What you need to realize because it might help you, is that these feelings of yours are just chemistry. By now it is an addiction, and you need to detoxicate yourself. And when and if you've successfully done so, you need to change the values you base your emotions on, or how you choose to apply them.

Your body is a machine, a complex one perhaps but still a machine, you need to tend for it in that respect. Don't let the substances flowing through your body rule you, they are there for your well-being, but if you abuse them they kill shit. You need to be in control. Right now you're not, you damn certainly can be, and give me no bullshit.

If people can quit heroin, you can quit your gf's sister, you just need to want to do it.