Need help advise

So I recently reconnect with someone I met 8 yrs ago. And everything is going great, except for the small thing that he likes to be with men too now. He’s a really nice guy and I never forgot him or stop loving him. I ask him if he’s gay and he said no that he likes women but he also wouldn’t mind doing threesome or foursome and having open relationship. He says that way we can keep things spice up. I mean when we met I was into that too but I’m not anymore. I just want a peace life, someone to share my life with and enjoy myself privacy and publically with that person. Am I wrong to be confuse and scared. Any advice????