I feel like my boyfriend wants to be with his ex? he’s still friends with her and watches her gaming streams and she watches his.. am I overreacting?

He’s also still friends with her brother: the girls name is skylar. So basically he’s been gone all day and hasn’t talked to me because I’ve been at work but low and behold I go on his ex’s twitch stream and he’s on there commenting when he said he was watching movies. Am I just something to make her jealous? I’ve been with this guy 6 months
I feel like my boyfriend wants to be with his ex? he’s still friends with her and watches her gaming streams and she watches his.. am I overreacting?
Post Opinion