To be quick Wife and I happily married for 35 years together 40

Yes we are older but in great shape and have sex couple times a week. For decades I’ve shared my desire to share her in mmf threeway or just watch and support her. Recently she’s really become interested in this, even where we’ve set up accounts online connecting with potential 3rd. Even met for drinks once. But she says 1. Is afraid I’ll become jealous or not respect her anymore

1. Thinks I want sex with women which I have zero interest in

2. We have religious background and feels it’s wrong even though I’m fine with trying things

I’ve done my best to share and resolve these issues with her, she’s read articles , books etc but still cautious…

Any suggestions that can help ease her ? She’s very desirable and fit

Thanks Tyler