I removed myself accidentally from a chat group, how can I rejoin the group chat?

Greetings MissyDarl, 

You can ask someone that is still in the group chat to add you back to it. There is not a way to add yourself to a group chat. 

Here’s how they’d do that:

Add and remove people in group text messages on your iPhone, iPad, or iPod touch

How to add someone to a group text message

1. Tap the group message that you want to add someone to.

2. Tap the group icons at the top of the thread.

3. Tap the gray arrow icon to the right of the contacts, then tap Add Contact.

4. Type the contact that you want to add, then tap Done.

Thanks.