This is awesome. When she says she finds a guy "special," that clearly means that he gets her pussy wet and he makes her feel like a slut. That's when she wants that raw black cock! You get jealous, but she makes that work for her -- and for you. When she's with him, sounds like she ignores you completely and concentrates on her big black bull, letting you see how a superior man makes her feel.
Yes, you worry about her getting knocked up, but part of you fantasizes and wants her to be black bred, having everyone see her swollen belly full of a black baby after this amazing black stud filled up her pussy. Some of your buddies would be negative about her getting impregnated by a black guy, while others would go home and beat off thinking about their own wives and gfs getting blacked and knocked up.