What is it with guys and not being able to open up and talk about how they felt? I always thought it was stupid and then I realized all along that I was doing it to pretty much all the girlfriends in my life and it took losing one that was important to me to really get that message across. I had trouble coping with I love you (I got it a month into our relationship) and she knew something was wrong and I didn't really tell her the truth. She took it as her being not good enough (which isn't the right thing to do, more of an insecurity thing) and it made a huge mess of things. I remember having conversations with her and her telling me "I don't want to break up with you, I don't think I could ever do that" and I pretty much tested that theory. Not intentionally but she finally had enough and did just that. There's really nothing more important than honesty and sincerity in a relationship.
Anywho, as hard as it may sound, do not worry about falling out of love with him. You can gauge your actual feelings for him by how quickly or how slowly it happens. And the only thing that can test that is time. These arguments that you guys are having is kind of a power struggle with the relationship and nothing can be accomplished if both people don't see it from each other's point of view. And don't take things he says as "he didn't mean them." That's absolving him of all responsibility no matter how hurtful they are. There is always some truth to things we say, we don't say them just to say them. We thought of it and we expressed it. Don't take away the importance of words, especially if they are matching the actions.
It can be frustrating, and no matter how many times you tell him it's important, he might not still see it from your point of view. Nothing can ever be solved. If you tried talking it out for a long time, if you tried to get him to understand for a long time, and nothing is changing...well guess what is the next step?
As crazy as this sounds, maybe you need some space from this relationship. I'm not saying you have to hook up with somebody else (I don't think it would make me feel any better afterwards) or anything like that, but just be apart and alone for a bit to really get some perspective. If it means alot to him, despite all his legal troubles, he will start to see what went wrong and what he can do to fix things too. Being apart from something that is important to you can really help you grow (as was the case for me). I don't know what kind of effect that will have on your depression though, as I honestly don't have a full understanding of it.
Now to cliches, "If you love something let it go, and it will come back if its true love." If you do decide to be apart, there might be some begging and some desparation on his part that will try and get you to cave. It's just a reaction. It will take some time and some reminders that you need the space and that it isn't helping at the moment.
Just my thoughts on it. It's a learning process though. Do what you want to do and based on your success or failure you will know what is right. It'll become instinctual.
Waking up next to a beautiful girl,
Step outside and say hello to my beautiful world.