What should i do?

I'm a bisexual. A guy friend of mine confessed to me and he said he likes me so much and he wants to be my boyfriend.

I like him too but not too much.

And, my girl crush confessed too that she like me too.

That girl, i like and her so much.

While that guy, i like him a little and i'm a little uncomfortable around him.

What should i do? I mean, i don't want to hurt him (the guy). If i speak and he push himself more for me. I'll just say something bad.

I don't want to hurt people.

What should i say to him?

Am i still bisexual?

Because now, i'm a little uncomfortable around guys.

Sorry for my bad english.