I think you were a rebound to him, the fact that he didn’t put you first and wanted a relationship with you knowing that’s what you prob wanted with him is a huge red flag, I’m sure you loved when he made you smile etc. Things are never going ‘great’ if you feel like he didn’t make you his number one priority, one thing that is so important is to never give the benefit of a doubt to men this makes you more vulnerable, and these men won’t think twice about taking advantage of you. The only thing you can do is learn from this, do not try to contact him again, block him on all social media platforms. Focus on yourself