Weird Situation - What would you do?

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My husband's friend, let's call him James, was dating a girl we'll call Sara. Anyway, James and Sara had a relationship going. James felt that it wasn't working out at times but really loved Sara and waited for years for it to work out. Then one day Sara left her myspace open on her computer when she left James alone in her room. James looked through her messages and saw that Sara was cheating on him. He broke up with Sara. Sara kept calling him for months saying she was sorry and blah blah blah. Then Sara developed a stress related heart problem and had to get a pacemaker. Anyway, since Sara is my husband's cousin and we were over at my husband's mom's house I was like, "Hey, I heard about Sara getting a pacemaker, I hope she starts feeling better." My husband's mom replied, "Yeah, James mom won't stop calling/emailing Sara. She says that they should get back together, but Sara doesn't want to... she just doesn't have anything in common with James anymore. James's mom is causing a LOT of stress for Sara." I know Sara is lying to her mom about why they broke up (who is telling my husband's mom about this.) James's mom definitely is not involved in this and this isn't stress related because of that. What would you do in this situation?