<human>: I've had a friend called E (23f) for the past year.  We met over last summer at a friends apartment, and then proceeded to see her by chance every day the first week of our fall semester at a university we both attend (we both commute to the university).  

She would text me and snap chat me every day during the fall semester and we became good friends.  Although it sounds like she dug me I assure you 99% of her texts and snaps were not flirty.  

At the very end of the semester I finally asked her out on a date even though I knew she would say no....she said no (she said she didn't see us like that).

Even though I know she was going to say no it still hurt and I was more mad than I'd like to admit, my reasoning being if she can text me every single day why can't she just go on a date with me?

About a month went by and we barley talked.  

We slowly began texting each other again, and I thought I was completely over her. 

Me thinking I was over her was great for our relationship as friends.  It's been awesome having her perspective on other girls I'm interested and because I wasn't trying to date her, I could be totally open with her and ask her for real advice with girls, without worry of not looking cool.

I've recently started dating  another girl (just dating, she's not officially my girlfriend yet), and my friendship with E has gotten to the point where we are in constant communication, we text every single day.  E's been going on dates with guys too but nothing serious.

I like the girl I've started seeing, but when I receive a text message I find myself hoping it's E.  

I don't think it's fair to the girl I've started dating that I'm texting another girl all day long.  I don't know how to tell E we can't talk as much without sounding completely rude.  

Any input is much appreciated; Thank you.

Can you succinctly summarize the text in 1-3 sentences?
<bot>: starting dating a new girl, need to tell close friend who's also a girl I can't keep talking to her as often