Please help me (open minded people only)

At night I grow horns.. it starts at the drop of sunset. As soon as it’s pitch black they’re fully grown.
It’s so embarrassing. Nobody but my family knows. But I feel like a complete weirdo.
Please don’t ask why they come, it’s quite complicated:/
Anyways my issue is there’s this guy I’m seeing who I really like and I can’t meet him late. He’s starting to get curious as to why. The other day I risked it and during sundown he put his hand through my hair to kiss, and i felt him touch the horn that was starting to come through. I laughed nervously and he looked at me weird and I told him I bumped my head and it’s a bump.
I don’t want him to think I’m weird and then drop me after finding out about my condition. Please help