<human>: I'm using a throwaway for obvious reasons.

I recently started dating this girl. She and I hit it off very well, and the first couple of dates were a lot of fun. She has been very open to me about the number of people she has slept with, which is 5. I have only slept with one person, one time, and it was a drunken hookup. 

She was very open to me about how her past sexual encounters have gone. The past three were hookups, but one in particular has me currently concerned. 

She was very good friends with a guy for a while. It started out innocent, but They hooked up a couple times. After we met, she had not talked to him for some time, but they eventually reconnected on a platonic level.

She has mentioned to me that she would like to wait a little while before we have sex. In her past she felt that guys have only been using her for sex and she was very hurt by that.

Before she and I started going out, she had made plans with him to hang out on Valentines Day, and feels that she should honor that commitment because they are no more than friends and we have only recently been dating.

My two major questions are this: 

1) Should it worry/bother me that she all of the sudden wants to wait to have sex with me given her past of hookups?

2) Should I be worried about the fact that she still wants to spend Valentines Day with a guy from before we met?

Give me the gist of the text in a nutshell
<bot>: Girl I'm dating is spending Valentines Day with an old male friend and wants to wait to have sex. Should these things bother me?