So many people think “I” is a classier pronoun than “me.” It isn’t. Both are equally weighted in the World of Pronouns. If you have used a preposition, you need to follow it with an object pronoun, which is what “me” is.
You wouldn’t say or write, “Janie sent an email to I,” would you? See that “to”? It’s a preposition, and therefore needs to be followed by an object pronoun: She sent the email to ME.
“Between” is also a preposition. I cringe when I see or hear “Between you and I.” Again, it’s ME. Here’s a list of some other common prepositions: for, from, above, under, below, beneath, underneath, near, next to, along, about, down, up, across….You see they indicate location or direction.
Here are other object pronouns: Her, him, us, them. Whenever you use a preposition, you’ll need one of these pronouns. Don’t say or write, “Between Bob and he.” It’s “Between Bob and him.”
If you use “I” or another subject pronoun, such as she, he, we, they, people are going to shudder. You don’t want that to happen. Use your object pronouns proudly.