As far as your girl goes, here are some thoughts. Honesty is important in a relationship. I have no idea how serious you two are, BUT there is always a chance that the relationship isn't going to last forever. Thats the reality of love, right? So I dont mean to sound like a negative person haha. Hopefully you two will make it through the long haul, but if you don't, is there a chance that if you did use gear, she would tell everyone after a break up? This happens haha. I have seen it happen. So my first thought was to work on getting her to understand how it would help you and how it is possible to use gear while maintaining health. But if you were to get her on board, she would then have ammo to use against you if things went sour. So this would be a reason to not to not tell her. All of that being said, lying is never a good plan, but think about both sides of the coin. If you want to trust her, I would give it your best effort. Have her watch Bigger, Stronger, Faster with you.
I know that most of this was not your question though. GH alone is going to help keep you leaner. It wil be good for any remaining issues you have post accient, but it will not be ideal to use it alone without AAS if muscle gain is your goal. GH will help to create new muscle cells and then AAS help these cells to mature and grow. Ideally, GH a low dose of insulin and AAS would be the best route, but slin is something you really need to work on understanding before you jump in. You could try to cycle a lesser compound like Osta but it wont be even remotely close to what you can get from real AAS