girlfriend getting clingy and annoying me

I'm 18 working almost full time starting my own buisness with my dad she's 17 still in high school and going to college after.. been together 14 months I think..

Most of the time I'm working I'm able to text her and snapchat throughout the day while shes at school but this time we had a heavy snowfall so I hustled ass in the cold for 2 days and even made $300 yesterday. She was calling me though and I'm told her im at work I can't talk right now ill text you when I can.

I try my best to text her here and there and tell her I love her and call her pretty to cheer her up but she gets all moody and pouty over the phone and its fucking annoying.

I was out in the cold (-26C) from 6am to 6 pm and didn't get home until 7:30 so I call her and ask how her day was and she's still miserable. She starts to cry on the phone and tells me she just misses me and she wishes that I would show her that I miss her too. Wtf?? We didn't FaceTime for 2 days and she's acting like this? I go out of my way to check in on her when I could just not do it at all and she has the audacity to say that shit. So all my plans for the evening sabotaged by an hour half FaceTime call 🤣🤣

I'm getting pretty tired of her immaturity tbh, We've had situations similar to this so when she says she'll try better to not get upset I highly doubt it. I love that this girl is all over me and literally thinks of me every second but come on bro.... I'm 18 years old I hate feeling locked down like this.. Is she jealous? super clingy? idk bros.