<human>: So I (21/m) have been seeing this girl (19/F) for about a month now, but we were friends for a year before we started seeing each other. I asked her tonight what she thought of us and she said, "Idk, I have fun with you" which is great I guess but the problem is I really like her. I want to hang out with her, get to know her, and be together, but so far I've had to put all the effort in.

I plan all our dates, I initiate all the times we have sex, and I'm the only one that opens up at all. I thought opening up would make her do the same, but she just sat there with a confused look and said, "ok" afterward, no other response. 

Also she uses her phone often when we hang out. She does a lot for different clubs, jobs, etc so I understand she needs to stay connected with people but tonight I saw her get a text from her ex, which was a bit concerning.

I'm trying to give her the benefit of the doubt, telling myself she just doesn't fall as fast, but it's getting frustrating. I want to be with someone who wants me as bad as I want her and that is definitely not happening here. Any advice on what I should do?

Can you succinctly summarize the text in 1-3 sentences?
<bot>: I like my current girl way more than she likes me. How should I approach discussing this with her/ should I discuss it at all?