Dad and step dad controversial

Guys, I have a problem. Ok so my step dad asked me if i was going to allow him to walk me down the aisle with my dad, i told him yes, because i didn’t want him to feel left out. BUT I have a really close relationship with my dad and feel like he shouldn’t have to share that special moment with me. Also, I lived with my mom and step dad growing up, but even though we lived in the same house, we did not have a good relationship what so ever. We really built a relationship in the past year. However, my dad has always been in my life and we’ve always had an awesome relationship. I don’t want to hurt my step dads feelings, since i already told him yes. What should i do?!