O - There are plenty of success stories w LRT while living in same house.
The trick is to be nice and mysterious. When you are around her just treat her like a roomate. Friendly, small chit chat. Nothing heavy. If she says something mean just play it off. Just tell her that you are working on the future not the past. Dont stay at home a lot. Go out with friends, go the zoo, museum, take up new hobbies, that is way GAL is so crucial. She will wonder why you are in a good mood and are always out running around. Hopefully, at some point she will want to be part of that. It takes a lot of patience and consistency though.