My Husband Has Come Out As Bi

Please help,

My husband and I️ have been together for 4 years. Recently, he told me he wants to experiment with guys cause he he thinks he might be Bi. Of course, I️ asked if he still loved me cause I️ felt that maybe he was losing interest in me but he has told me many times that he loves me and still thinks I’m sexy. However, he thinks he might be into men too. He has never been with a man. I️ want to be supportive and I️ told him that maybe we could try a threesome with another guy but, I️ find myself torn. I️ don’t want to lose him but idk if I️ can do a threesome with someone else. I️ have a history of self- hate and I️ really only feel 100% comfortable with my husband. What do I️ do??? I️ find myself getting jealous but also wanting him to be able to find himself (I️ just don’t want him to do it on his own, cause that feels like he’s cheating)