Inter-group: A group of your friends including you have a rival group or click that tend to bump heads, or on the end of the spectrum you and your group of friends find another group that you get along with and interact with eachother.
Inter-personal: You and your significant other spend a lot of time talking to each other about the futures you dream about, your wants and aspirations - your history etc...You interact with another person or share dialogue in a conversation.
Intra-personal: You could be struggling with low self-esteem/confidence, mental illness, or be overly optimistic about the world, any number of things concerning the inner workings of your mind and personality and how you function mentally.
You'll have to apply this to your own life and memories, as I can't read your mind and do it for you.