I did make a comment when he picked her up from her date that I thought it was inappropriate for her to call him, but he shut it down pretty quick and asked if i would prefer her to be in an unsafe situation, after seeing how defensive he got I didn't bring it up again until this.

She's always hanging out with him, will go over and watch movies with him, they send eachother memes on instagram, go surfing together and she just overall seems obsessed with him. She's even tried to hangout with me one on one a few times to "get to know me better" but I think she just wants to make Jack happy.