I read a manga book called Wish, that involved the romantic love lives of angels. This is not Christian, angels are not suppose to be interested in romantic/sexual love, for one thing they are spirits and do not have physical bodies. A female angel fell from the heaven, I think she had been sent to earth for some reason, it was winter and this young man who was a doctor found her and took care of her. (I think she was in cherubim or chibi form, and was little like a baby, later on she grew up.) I only read the last book, I found it at the library and came across it by chance, was curious and the angels were pretty so I thought I'd read it. Anyway, the doctor saved her life ( I thought angels were immortal) she grew into a beautiful young woman and lived in his house with another female angel, a devil the son of Satan who was this more mature female angel's lover, and another demon with her two servants, hellcats, who were cats by day and girls by night. The young angel was in love with the doctor and promised to grant him a wish. This pretty, sweet young girly angel was God's favorite. Then she was called back to heaven. SHe was ordered to stay in heaven, but when she looked into a pool and saw that her boyfriend on earth was sad without her, she disobeyed and went back to earth to be with him.
God decided to punish her for disobeying and her friend for having the son of Satan as a lover. He sent down these powerful angels, angel of fire, water, and wind. The angel with the devil was stripped of her rank and power and exiled from heaven, and so was the younger angel, she was reduced to chibi form, and her doctor friend had to carry her everywhere. She would stay a tiny, helpless chibi for 100 years. Then, the man she loved died. Poor cherub angel was so sad. Then GOd sent down this little rabbit thing with a sunflower. The seeds would make her sleep for 100 years. After 100 years the doctor would be reborn again and she would wake up and be with the reborn version of her lover. THen he could make his wish, to be with her forever.
SO, although it has angels and God in it, it is not Christian. Reincarnation is not Christian, neither is angels in romantic relationships.