Girls, what would it mean if you write the last letter of a word many timessss?

[Anonymous]

One girl in my class in some messages she sends me she tends to write the last letter of a word like this
Thank youuuuu
Okayyyy

We have a friendly relationship as far as i think.
Why do you think she does it? Why don't know each other more than five months and I think she is quite polite. Could this be a sign that she doesn't see our relationship just in a friendly way?

[CMeow]

It probably means she likes you. It seems silly but girls are more likely to type that way if they’re interested

[CoolCatMar1]

I love doing it it's cute that's why haha but i used to do it only with my crushes now i do it out of habit

[Anonymous]

Maybe she has a slow leak.