Answer:
1 is Expensive, 2 is limestone, 3 is larva, 4 is culture, 5 is source, 6 is charge, 7 is formations, and 8 is emissions
Explanation:
There are many kinds (can't name them all off the top of my head)
1. Telling someone you'll keep it a secret and then tell anyway...
2. Always being there for someone and then not
3. When you cheat on your husband/wife or someone you're in a relationship with
4. Using someone just to get some
Those are all I can think of (at the moment). But you can just pick whichever one you want.