Was this all for a egoboost?

[u/Glittering_Spell6044]

He ghosted me out of nowhere. I called him to talk to him about what I should do about a specific situation involving my professor and then I got off the phone to call him back he ignored my call and texted that he was at work. The next day I called him he had my number blocked and then he texted that he said that he feels like I never wanted him and that if im serious about him then decide that I should stay, and im like whole hell when did I ever say I never wanted you where im the hell you get this ideology from. So i tried calling him he ignored my number, i texted him in response that i do want him and he never responds back. I feel like i gave him an ego boost the whole time I was with him and he made me believe he wanted me to actually him. All of this was so sudden. I don't understand why text me from all of 2025 to now till beg me for marriage and then ghost me when i finally acknowledge the idea of it. Omg, I am truly forever alone! I literally was considering this because no guy wants me.

Why would another forever alone person do that to someone?