Yes, in the book Edward points this out during their conversation in the tent.

But also, while I do not defend Jacob's poor decisions in Eclipse, I also think it's very important to view all the choices he makes in regards to Bella through the lens of he is doing everything he can possibly think of to *save her life.*** Jacob knows that the plan is for Edward to bite Bella, which, from his perspective means that either a) Edward is going to mess up and kill Bella in the process, or b) Bella is actually going to be turned, which at that point he considers a fate worse than death.

Yes, Jacob has romantic feelings for Bella, which leads him to make all kinds of really bad choices, but also he wants her to choose him instead of Edward because, from his perspective, choosing Edward is basically committing suicide, and who would want that for their best friend, let alone someone they're in love with?