You're not really gonna get a lot of romance because Remilia doesn't have romantic feelings for Angel. She likes him only because of Emi. Her feelings of joy and acceptance are only because he passed her test to see if he appreciated parts of her that are Emi. It was always going to be this way because in her heart he true love is Emi (platonically and perhaps romantically).
That's not to say she wont treat Angel with love and care, of course she would because that's what Emi would've wanted. This really isn't a romance. Maybe for Angel it was but we aren't seeing things through his perspective.
I want to see some get to together scene like with their little daugther that happy side stories （/TДT)/
Nahh for real it says a lot how our girl remilia loved emi so much there bonds are so precious to me
Oh don't end it like this give me the romantic parrtttt(╯°Д °)╯╧╧