Our mom thinks this is weird and abnormal behavior. My family has gone on a vacation for spring break. My sister was included in this trip but I had to stay behind to care for some pets we couldn’t bring along. Apparently, the first day of the trip, my little sister was very sad that I didn’t come. She is little. She doesn’t understand why I didn’t come, just that I didn’t. In fact, when she found out we were taking a vacation the first thing she did was run to me and tell me she couldn’t wait to go to ____ with me and do ____ with me. It is all she talked about up until the trip. So she was pretty bummed that she didn’t get to experience this with me. My mom thinks it’s weird that she texts me almost constantly during the trip, but from me and my sisters point of view, she is just telling me all about her day and she wishes I was there. We live together and I am an online student so she is used to always having me around. We are 10 years apart so she has always been a baby in my eyes and we have always been inseparable. I think she just isn’t used to being away from me and wants to tell me all about her days. It is innocent to us, but is there actually something to be concerned about like my mom is saying? Because I feel weird for having such a close relationship with my little sister now. Sorry I had to ask it in this subreddit, this is a new account so I had nowhere else to go where my post wasn't getting deleted.

EDIT*** Editing this post to say that my sister isn't really texting me 24/7 like my mom is making it seem. I have seen several comments saying that screen time should be limited but unlimited screentime isn't the problem here. My sister only has her phone on her while she is at the hotel room, and it is a very busy vacation so they are only at the hotel room in the mornings and at night. My sister goes all hours of the day without communicating with me when she is used to being right by my side 24/7, so when she is able to, she talks to me as much as she can because she realizes that time is limited. She is just catching me up about her day twice daily and trying to include me as much as she can, in constant flurries of texts. She's not really texting me 24/7 so idk what my mom's deal is.