New here. Signs you met someone from a past life?

I’ve had someone in and out of my life for 10 years. The connection has always felt extremely strong. We’ve tried to part ways many many times, probably almost 100 goodbyes. Months or years go by we speak and it all comes back. I haven’t seen is person for 6 years and yet still when we speak that chemistry is there. We are both married, I’m happily married so I know nothing would come from this relationship but I’ve spent years trying to figure out what it is because the sexual attraction is the most intense I’ve ever felt but also the pain that we cause each other is the most intense. It’s messy and I can’t figure out if it’s really but it’s has to be after all this time?