Missing Friendly, Flirty, and Mean introduction

Try clicking on More Choices... from the first pie menu, then click on Friendly for Friendly, Cheerful, and Respectful Introductions, click on Funny for Funny Introduction, click on Romantic for Flity and Enchanting Introductions, and click on Mean for Rude Introduction. There might be other introductions as well, depending on what packs you own. Hope that helps. 

NOTES:

Cheerful Introduction requires level 4 Charisma skill. 

Respectful Introduction requires Snowy Escape. 

Flirty Introduction requires level 5 Charisma skill. 

Enchanting Introduction requires level 8 Charisma skill.