anxiety when I'm not near him

I'm not clingy when I'm with him I swear! But when I can't spend the night with him cuz I have to be closer to work I can't sleep and all the next day I'm a mess like I forget stuff and I catch my self on the verge of tears and I'm petty and short with other people and even him sometimes. Cuz I feel like I'm not getting his attention even though I am. If I see him for an hour I'll be okay but if I know I'm waking up tomorrow and won't see him for a few days I get anxious and sad. Is it weird that I literally need to smoke some pot or see him because I have like I guess withdrawal from him?