Am I being overdramatic?

I need some advice. Last night myself and my partner got into an argument about him going off and buying a new car without me (the car will be mainly driven by me as he’s at work & has a work van so 90% of the time Will be me that drives it.) anyway he went and bought one without me and brought the first one he saw. When he got home I said it would have been nice to have been included as its mostly me That’ll be driving it and he got angry & we argued cos ‘I wasn’t happy for him’. But during the argument he got very nasty saying he hated me and lots of other nasty things. Now this may not seem like a big deal but during the argument while I was holding little one he threw a pair of rolled up socks at me and they hit me in the face. Now I know These were only socks but honestly it’s knocked me for 6. I don’t know what to do from here, he’s left & at his mums but we’re also due to go on holiday tomorrow & no idea what to do now. feel like my whole relationship has just come crashing down 😭😪