A few questions 請8老師 和知道的人

I just sent K1 visa application for my fiance a week ago, but he said he wants to come here early, and

he wants to apply for B1 travel visa himself in the next few weeks.

Dose my k1 visa application affect his B1 visa?

Can his B1 application be approved if they know I have k1 application for him?

If somehow his B1 visa got approved, can my k1 application for him also be approved?

( if he comes with b1 visa, stays for a few weeks, and goes back for k1 visa)

If he comes with k1 visa, but left without marriage, can I apply for k1 visa for another person later?

Is there a limit on how many times that I can apply for k1 visa?