Just a passing thought..
No one is ever able to replace another.
It may happen for a split second, that the feeling is the same. But it is impossible for someone to fully replace the former. It happens sometimes in relationships. You lose someone and you look for someone to fill that space. But yet, something is just not right. No two persons are the same. The feelings you once had will never be found again. That is for sure.
& by looking for a replacement, you’re not giving the replacement due respect. You’re using that person as a substitute. No one likes to be a substitute. Each person wants to hold a special place in your heart.