Men and communication

So I’ve known this guy for about 4 years now, he tells me he’s interested in me and I am too. The first time we got close to each other he stopped communicating with me and unfollowed me on Instagram, come to find out he lost his father and was going through a rough time. He tried to get close to me again, I was hesitant but I understood that he was going through some things so we got over that and became close again. He put in a lot of effort to get me to talk to him, and then when I finally did, he didn’t communicate with me for over 2 months and I was like 🤔. He did come back saying that he was stressed out over work but at this point I was not feeling it.

He actually came to visit me and was putting out a lot of effort to talk to me, so I dropped my guard a little and we hung out. I was waiting for the other shoe to drop because this has happened before. We were good for a few days, and then he just stopped communicating with me for weeks. We had plans to go on a trip so I texted him again asking if he was still coming, he was online but I got no response. I finally deleted his number and unfollowed him, if he contacts me again I will not reply. But I’m just confused as to why he was doing this🥴 what do you guys think?