Names too similar?

I am so stressed. My hubby LOVES the name Clover (I like it a lot too!) but our sons name is Casper. The only real problem I have with it is that the names are so similar. I have tried to tell him tons of other names but he only LOVES this name and thinks this is the one! We both like Clover but the similarity thing throws me off big time. Everyone we have told say they don't think it is too similar.. especially if they go by Cas (I call my son this 75% of the time) and Clove. I don't know what to do. Wish I didn't care about what people think so much 😭