Should I feel guilty about this?

I (19M) have this friend group in uni. There are five of us, though, I will call one Luke, and the other Tom.

Basically, I like to often text stupid things with Luke, we often send each other memes and joke around. One of our conversations seemed really funny to me and one day I decided to show it to Tom. He laughed as expected, but now a question arose for me. Should I feel guilty for doing this, because I kinda showed a snippet of our private conversation, though on the other hand, there was no private/sensitive info in it and all three of us are part of the same friend group.

How should I feel about this?