My bf is being distant

I’ve been dating this guy named Chase for a little longer than a month now. It’s still fresh and new but he’s been acting so distant and weird lately. When we first started dating he would tell me how beautiful I was and how much he missed me and all these sweet things and we talked all day everyday, and I loved it but lately when I text him he just leaves me on open and doesn’t reply. I don’t want to look like the crazy and clingy girlfriend but I can’t help but feel like he’s slowly getting bored of me. We usually go on double dates and things like that with my best friend and his girl but he’s been blowing them off lately and i end up going alone. It’s kind of embarrassing to go by myself and see my best friend treating his girl like a queen but I’m happy for him. I haven’t seen chase in a while but every-time I try and make plans for him to come to my house or for me to go his house he just says he’s busy but then he starts posting all these videos and pictures of him and his friends on Snapchat. It just feels like he’s picking his friends over me sometimes and I haven’t said anything about it bc I don’t want to be the crazy obsessive girlfriend. What should I do?