Why did the guy I'm dating suddenly change his attitude?

Previously, we kept on fighting with this guy because he kept complaining that I don't really like him and that I seem to be cold, not into him. He admitted in the past he fights me when I am cold towards him. He also fought me because when he saw me, he said he wanted to hug me but he felt that I was not caring so he got upset because I was not caring in person. He always fights me whenever he wants to advance the relationship and I'm a commitmentless person so he has a hard time with me telling him I prefer not to have labels and he saying he prefers to have one.

He also wanted to have sex already but I told him I'm not yet ready and he acted like a child and kept trying to push things. I finally had enough so I ignored his messages for days and he suddenly began to bombard me with messages everyday even if I did not reply. I did not reply for 3 days then he began to say things like I'll not anymore disturb you to make me feel guilty.

In the end I told him, I'm tired of fighting and that maybe he should be with someone else. Someone that has the qualities he is looking for. But, in the end he said he really likes me. He said he doesn't want to fight as well and he'll stop fighting me.

Lately, whenever we talk I can sense he has totally removed the pressures he does in the relationship everytime we talk. He also was overly paranoid and needy before and now he has removed that as well. There are instances I reply really late and just laugh when he ask for a date but he just laugh as well instead of getting mad which he normally did in the past.

He really did a 360 degrees of his attitude and I can't help but feel sceptical. Sometimes I feel he is a bit hurt but altogether it seems like he really wanted to be with me.

Why did he change completely in such a short span of time? I just noticed that he really got affected again when I did not reply already for many days. He posted on fb that he is tired and he went drinking right after on his stories.

Why did the guy I'm dating suddenly change his attitude?
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