Marc Jacobs Off-White Leather Crossbody Bag

Chic Marc Jacobs crossbody in off-white leather. Perfect for everyday style. I have had this bag for a while. I debated on listening it so please be advised... This is an Authentic Marc Jacobs bag. The outside body of the bag is in very good condition. The print on name is fading. but otherwise the outside is rate as an 8/10. Now the problem is the inside. A pen blew up ..and when I say blew up, I mean like a nuclear bomb. 😡. I have cleaned it the best I can, and now I give up! I could either let it set or sell. and the bag is to pretty on outside to just let it set. please see pictures.