How do I proceed?

I went on a first date two weeks ago with one of my neighbors. I thought we had a great time, we laughed a lot and had so much in common. I went back to his apartment and we made out a bit. I told him I didn’t want things to go further. We tentatively made plans to get coffee the next morning. He cancelled those plans and then didn’t text me for a few days. On Thursday I invited him out to get dinner and/or drinks again on Friday night. He said he was “busy studying” as he had an important test at his job. The next day he saw me and asked when I was going out to eat with my friends for my birthday. He said if he was done studying, he would let me know and maybe we could do something. I never heard from him, but he will stop his car to talk to me when I walk my dog. He ended up pushing back his test because he wasn’t ready for it, and I still haven’t been invited out. I don’t want to initiate things if he’s not interested!