Should I regret telling him my feelings?

Anonymous
The guy I dated one month ago just stopped talking to me out of the blue. I think I'm gradually getting over it. He seemed and acted like a nice person since I first met him. The first time we talked he just wouldn't stop telling me I was gorgeous and that he liked my personality a lot. At the end of that day he hugged me and whispered to me "I wish I didn't have to let go".

Of course all of that got me excited about him, because he was kind of my crush. By the way he spoke I'd never thought he could be lying.

So I told him about my true feelings for him: I like you, I like the way you are, I like to spend time with you, you seem like a great guy, I'm glad I met you, etc. And to all of this he'd smile and say I was making him feel shy. He was even going through some problems on his life and I told him I could be there for him if he needed me.

Now that he don't want to talk to me anymore, and he left me without saying a word. I feel like I should never have told him about my feelings for him that soon. :( But since he seemed honest, and I liked him very much, I didn't want to waste my opportunity.

Do you think I should avoid this next time? Just be me? Or is just that he was a player or something?
Should I regret telling him my feelings?
3 Opinion