Why would he block my number but still watch my social media while I’m pregnant with his baby?

After I told him that I'm pregnant with his baby, he blocked my phone number. The baby is definitely his. I was celibate for a while and only was with him. He unblocked me and I sent him an ultrasound picture after the first ultrasound. He blocked me again. What's strange is that he continues to watch my social media accounts. I can see that he views my stuff. He does it frequently. My belly looks obviously pregnant now so when I post pictures, I know he can see it. Why would a guy do this instead of actually communicating with me like an adult?

Why would he block my number but still watch my social media while I’m pregnant with his baby?
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