My boyfriend and I have been dating for a couple of months but have known each other for over a year. After we started dating his ex girlfriend, of two years of and on, told him she was pregnant with his child. The problem is that they broke up because he caught her cheating on him. She denies that she cheated and insists that the baby is his. She even had a native american ritual done that supposedly proved that he was the father. He told her he'd have a paternity test when the baby was born but she continues to harass him. She's shown up at our work with her mom, constantly emails him and texts him. He's had to change his number already but she got it again for a mutual friend of theirs. He insists that he loves me and that he will stay with me even if the baby is his but I'm still worried that he'll leave me just because of their history and that his personality makes him very willing to please everyone. Reassurance and advice please.