If I'm not mistaken in the DLC we can pursue Derek and Baxter but I guess it won't be as deep as Cove's route. I mean he is the main and ultimate love interest afterall.
Thanks for the answer!I have Step1+Step2 DLC but it doesn't seem like i can start getting closer to Derek. At the end of Step2 i couldn't go on date with him, so i tried asking him out as a friend but his parents were like nope ^^'