You and Bruce dated for a few years untill he broke it off with you

He was worried, that you'd leave him anyways -- He thought It'd protect you just in case someone else found out he was Batman and targeted you

But he was doing it to mainly protect you, rather than him -- You were in number one priority -- You still are, no matter what

He knocked on your door, to find you... Pregnant? -- What he didn't know -- The child's his