Regarding astral merge/twinflames /soulmates

Something happened, I bump into a guy, a person I've had almost all lives with, so he say, recognition etc. Same positions more or less. Same birthday. Same background, from long ago. He came astral to me. I don't know how conscious he is about it and I'm confused too. But our souls were merging. And after that I've had this burn in the heart chakra, and it only gets worse. Can anyone tell me what is going on?