Hey there Bella,
I know it's a shocking thing to hear about someone you thought you knew very well being abused. It's scary to think that it's so easily slips past our eyes. But, this is a regular occurrence, sadly. There are many people in your school, town, sports teams, who are being abused and often show no signs we're looking for. Honestly, not many of us walk around looking for signs either way. However, even without depression or mood changes, it's very much possible-I'm sorry to say that. There is an upside to all this though. Chances are, you're one of the few people who know about this. So, use this to both your advantages. You seem to have once felt like he did/does. So, perhaps talking and listening to each other can allow a stronger trust barrier to form.
I'm not suggesting you do nothing, certainly something needs to be done to help this boy. I'm simply suggesting you understand the situation before you make any drastic moves. Seeing as your friend is already suicidal or was once suicidal, we don't want to add more stress than needed at the moment. One of the best things you can do is listen. Listen and show compassion. Let him know you're sorry it happened and you care a lot. Give him hope that things can change and possibly open up to him about a few of your problems? Try and figure out his current living situations. For example; Is he still being abused? How bad? By who? How often? How does that make him feel? Is he often suicidal? Things like that. Try and know as much as you can before taking any sort of action.
However, I say that if the case seems to be mild. Abuse is a very serious issue and it can easily put people in the hospital or worse. We don't want to take too long and allow it to continue. This is where your best judgment comes into play. If you feel that he isn't in immediate danger, holding off for more information might be helpful. But, if things are really serious and you simply can't wait, then don't. Go with your gut instinct and possible bring the issue to a parent.
Once you know enough about the situation, you can start convincing him the best ways to solve it. I would suggest getting him to open up to other people, besides you. Possible a hot-line? Maybe he can get more ideas from them as well. Either way, make sure he's talking about it. At least to you. Then, try and get him to confront the issue before you do. It is always best to have the victim come forth for themselves. You might be able to talk him into seeing a counselor, teacher, officer or parent. You can even offer to go with him. Try and make coming out as comfortable as possible for him.
Sometimes, I know victims deny the problem of abuse being an issue. Eventually, after years of abuse, they believe it's deserved. At this point, telling someone for him might become your only option. If you do decide to tell him, make sure you trust the person to act accordingly. Maybe even someone you're both familiar with, so there is some form of trust already built. However, if reporting it yourself is preferred to be a last chance try for you, I suggest motivating him. Show him news clippings, computer articles, anything about people reporting abuse and surviving. Allow him to see that when chances are taken, goals are reached and it all isn't bad after. Also, you might want to show him cases that go unreported. Just so he knows the dangers involved with staying silent.
In the end, it will come down to how well you know your friend and what you feel most comfortable doing. If you can't handle doing all of this on your own, then telling someone first should be your plan of action. Don't become involved with something that you feel you can't handle, okay? You're a good friend either way. I know it might be a violation of trust, but his life is very important. Losing him as a friend would be better than losing him all together. Besides, eventually, he might come around and see how much love it took for you to help him. Keep your chin up okay? Try and have a positive outlook of this situation. Especially in front of him. If you ever need anyone to talk to, I'm a
PM away. Take care and I wish your friend all the best.
~Stay strong and have faith.