Continuity mistake: When Anne breaks up with Eddie on the sidewalk right after they get fired from their jobs, she approaches him and drops the box she is carrying. A ceramic mug falls out of the box. There is both visual and audible confirmation. After putting her ring in his shirt pocket, she bends to pick up the empty box and proceeds to walk away without also retrieving the missing contents. (00:14:45)
Other mistake: When Eddie is in his apartment and on the hunt for a new job, he uses his phone to text a contact while looking for work. His phone shows no signal meter. (00:23:10)
Answer: Venom was using Eddie, much like Riot, to invade Earth. Venom was damaging Eddie's body until he grew to like him, which is why he said he could fix it while Dan was telling Eddie all of this.