seeing him live his life

ok so i dont know if im jealous (probs) angry or what but i just saw a bereal of one his girl friends (which btw HE DID NOT HAVE ANY while on the relationship). They were having dinner; there was girl friend 1 sitting next to him and girl friend 2 sitting next to his buddy. I wanted to throw my phone across the room, block him from every social media possible and yell at him. Its almost the second month post break up