Deleted suggested email addresses?

I am using the mail app on my iPhone and when I draft an email to send to two people (this problem replicates when I send to these same two people only every time) it will suggest two email addresses that have been included on previous emails with the two I am trying to send this new email to. I do not want to have them auto suggest anymore. If read various feeds and no luck on an answer to solve my issue. There is no blue “i” circle icon that appears next to them to allow me to delete them and they are not saved in my contact on my phone. I even used the spotlight search feature on my iPhone and their email only comes up on a previous email on my iPhone... no where else. Please help me remove them.