My boyfriend kept texting and chatting with other women while walking with me.

Something's wrong. Generally speaking, between men and women, there are few intimate words. But pay attention to his expression and emotion when dealing with it. I suggest asking him what happened there, listening to a joke and even giving an idea. Control the development of the situation. Especially the things over there, you can be a bystander to analyze the right and wrong over there and correct the overflow of sympathy from your boyfriend. But pay attention to discretion, speak skillfully, and don't let him find out that you are deliberately picking on her.