moving on kind of?

Date: 3/1/2019

i haven’t had a dream about my ex in the longest time but apparently last night was the perfect time. So i had a dream that my mum got a new job in this italian restaurant,she was the manager and i was helping her out, she had booked in me for dinner as a thank you and when i looked on the system my ex was coming at the same time with his girlfriend,and i somehow knew it was him but his surname was different. I then of course start freaking out and ask my mum where was my table and if she could move me because i don’t think I want to be near them. Turns out I’m the next table over and they’ve already arrived, my mum tells me to chill out and it will be fine so there’s no escape from them, he sees me and says hello and so does she and then ten minutes go by and he’s taking a chair from my table and making me sit with them,but he does this whilst his girlfriend is away from the table. Then we leave the restaurant and me and him are walking in front of everyone else including his girlfriend talking about whatever and he asks a question about my tattoo,and then i notice the number 19 on the back of his arm? that number doesn’t hold any significance to me or to him what so ever and then the dream turns into alternate memories of what happened and what might of happened and every time i look at him it’s my ex but he’s somehow different he’s dressed differently and his face is kind of different. I also woke up with the song somewhere in my heart by Aztec camera in my head? SOMEONE PLEASE HELP EXPLAIN WHAT THIS MEANS