i need to know if i’m trippin

so my “boyfriend” who i’m thinking shouldn’t be my boyfriend because we’ve had so many ups and downs he’s cheated on me etc etc. So yesterday he slides in and tells me he’s going to the beach with his homeboy and his family.. I call him on my lunch break today and i heard the car in the background so i know he’s driving. I ask him what is he doing.. he proceeds to say “nothing chilling, packing for the trip” and i’m like what packing?? and he’s then tells me he’s staying 2-3 days at the beach with his homeboy. so i’m like why are you lying?? you are driving.. THEN he says “i’m driving to the beach” keep in mind he’s driving my other car and he didn’t get any permission!! Then he said i didn’t to tell you because i knew you would trip.. “why you trippin because im going to the beach with my homeboy” idk i have trust issues, for one like i said before he’s cheated so it’s no telling what he’s doing, and 2 hes lied about the small situation that i explained.. what should i do?

may i also add he doesn’t help me

pay bills at all and he stays with me nor the car note.