Do you think that I should name my child after my ex?
What makes you want to name your child after your ex?
Sometimes I feel like having this child will make me feel closer to the one I loved
It's fine to choose a name for your child that reminds you of a loved one. If you have considered the name to be suitable for your child, naming him or her after an ex won't be harmful.
I feel like they would all be disappointed in me if I don't name my child after their father.
You can name your child after anyone that you want, if it is your child. It's completely valid to name it after a loved one.