MC is better off breaking up with this girl imo. She’s selfish, doesn’t tell a shit about her work and then disappearing all of a sudden lol. Might as well focus on your work and leave the girlfriend role to the childhood friend.
This reminds me of that recent manga I recently dropped where two lovers were found out to be siblings. Mc is the director, fmc is an aspiring actress. Both filming an erotic movie and fmc needs to fuck someone. Hope it will just be the two of them