Best friend vs. Boyfriend

Brittany • 2k18 here we come!!
My relationship with my boyfriend isn't perfect, when it's good it's great but when it's bad..it's bad enough. So our last fight had me in bruises, pain and tears but being that I'm taking that as normal I didn't leave. But my best friend have me an ultimatum and said if I won't leave him, we can't be friends and I'm no longer the godmother of her unborn babies. This breaks my heart but I don't have the strength to leave..it's been 10 years and as of the last two, his abuse is all I know. Not sure but pretty sure I lost my best friend today. :(