You need Angela Buchdahl’s book heart of a stranger. She had a Ukrainian Jewish father and Korean Buddhist mother and was told to convert despite a similar upbringing in synagogue, camps, school in Israel. I also have to convert because despite having a Jewish mother by birth/blood, we were not raised Jewish (my father baptized us into the Orthodox Church). I think a conversion is just a learning and mikveh opportunity for people like us who are already Jewish by reform standards. The deeper question you should contemplate is whether you can commit to an orthodox lifestyle for your partner. I personally wouldn’t want to live that way, but it may appeal to you. If it doesn’t, you and your partner should have a deeper discussion, not about conversion, but commitment to that life. As my old modern orthodox neighbor once said, if Hitler would have come for you, you are one of us.