The girl sent me several short messages, all of which ended with a heart-shaped symbol.

1, she is hinting at your favor. In fact, although it is a little inappropriate for some people who have boyfriends to like others again, their feelings are sometimes uncontrollable. In fact, some girls' feelings sometimes "diverge"

She is probably just teasing you. The word "seduce" can be used here. Of course, you should not interpret it too evil, because, ah, some girls will be very willing to have more boys around them like her, even if she doesn't like each other, or she is not single, but being liked by more people actually satisfies women's vanity to a certain extent.

She is pretending to be cute. I don't know whether you like watching Japanese dramas or Japanese comics. Little girls in Japan like to carry a lot of symbols when texting or chatting online. I often find that they like to add a heart-shaped symbol at the end of sentences. There are also many cross talks that like to add a heart when expressing love and happiness, just like many Japanese girls add a "meow" after a sentence. You know those girls in Japan like to pretend to be cute ~ Of course, some girls around me may have watched too many Japanese dramas or were born, and they also like to imitate. This is a little game between girls ~