> I didn’t know whether I should stay and put in more effort or if it should just be over

More effort? You went on a date with 6 different guys you've met on Bumble instead of trying to communicate with him. The only effort you made is make him feel that eventually you'll leave so he shouldn't get used to the relationship, and surprise, he didn't. You need to talk to him and clear things up, he can't read your mind. Communication is the most important thing on relationships, and you both need to work together to improve in that aspect.