How do I ask what we are without scaring him away?

My ex and I recently had a realization that we love each other but neither one of us has asked what that means for us.

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He took a year to realize he loved me after we broke up and I knew after three months of dating. We were broken up due to his mom not approving. He claims he will stand up to her at some point. We are currently very flirty and loving without a title.
How do I ask what we are without scaring him away?
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