You friend should put ice on bite in twenty minute cycles for a period of and two hours to reduce the swelling and help out with the blood clot. It might take up to a couple weeks for his hand to be healed.
This can happen for multiple reasons. 1. Make sure you have internet access. 2. She may have blocked you given you had a fight. 3. Your service may be down....
Take things slowly, and don't try to rush things. Being too aggressive, or seeming very desperate, can really make your chances of connecting worse. Since they're your best friend, think...