Jesse was a better love interest for Rachel than Finn ever was. He didn’t “isolate” her, he actually supported her Broadway dreams. Sure he made ONE mistake by egging her, but even after then she forgave him! Plus, remember who helped her find her birth mother and who asked Carmen to give her another chance? I don’t recall Finn doing that stuff. Oh and BTW, Finn wanted to go to LA with Puck instead of supporting Rachel. At least Jesse supported her.