Welcome Caine: You are in a tough spot to be sure!
As others have already said, you are in a unique position to do some real research into the roots and management of this religion. YOU must be sure that it is true, you can't keep going along with it just because you were raised that way.
Do you mind if I ask how old you are--do you still live at home or is there some space between you and your parents?
There are lots of others who have experienced the same things that you are going through--don't be afraid to share here on the forum. There are some that have left religion altogether, but there are others who still have a strong relationship with Jevovah and with Jesus, still follow the Bible, etc. but as it really is, not as the WTS nitpicks and twists it apart like the Pharisees.
As far as your DF goes, if you have confessed to the Lord, then you are forgiven in His eyes. What the WT is doing is to punish you beyond what is written in the Scriptures.
Look forward to hearing more from you!