This girl has a boyfriend but texts me all day.?

I met her at college orientation a few days ago and she got my number. She texted me later that night and we started talking about things we like and stuff like that. She ends conversations with things like night hub, sweet dreams or k text me later. Idk what to think of it because I'm a guy thats perfectly comfortable with being friends but I could fall for her if I keep talking because she's exactly my type but I don't wanna make her boyfriend mad. Should I keep talking to her all day or stop teapodig because my ex did this to me and it sucks. Any help?