Is it okay to entertain multiple people if it’s just dating and there’s no commitment yet?

Right now, honestly, I’m entertaining three older men. They’re all attractive and good-looking. I’m a 22-year-old Japanese girl. Two of them know they’re being dated at the same time, but one doesn’t. He kind of stands out in terms of quality, but I’m still unsure because his divorce isn’t finalized yet—it’s still in process. The other two are aware that I’m dating them both. I’m still undecided about all three, but I’m a bit worried about the one who doesn’t know he’s one of three. I’m looking for advice.