I really don't like my sisters boyfriend - Part 3

After everything. She is still with him. I mean... What!? Let me get this right: He's so far up his own ass he can see out his mouth, he keeps giving out "medical advice" that is usually complete shit, even when he's wrong about something he insists he's right, he questions whether my Son is my partners, he tells everyone that we're unfair to my sister because she does so much when actually she doesn't, he lies to my sister and then doesn't speak to her for a day, he still spends time with his ex and says he's with a male friend, and he doesn't even have a job! And for some reason, she is still with him!? I give up... 🙄

I don't like him enough to not let my sister see my children if he's there too. I don't trust him, I didn't even before all this happened. And yeah, that may seem a little extreme, but there's something just off about him, and I can't put my finger on it. But he makes me uncomfortable. My 3 year old, while usually rather sociable (especially with people at my Dads), mostly tries to keep away from him and will hide behind my legs when he's there.