I think both Jim and Lolita need professional help ASAP - we're talking they needed help a year ago, not next week. And if I were you I would tell Jim and Susan this in no uncertain terms. Not a "you should" or "you might want to consider" but a "you absolutely must, right now, here I'll sit and wait and drink a cup of coffee while you use your cellphone and get help right now" thing.
For Lolita it should be easy - she's a minor and has expressed suicidal thoughts to her mother and on paper which she handed to a trusted adult. Please sit back and think about that for a moment and point that out to both Susan and Jim. I mean what else could she do? Hire a skywriter? She flat out wrote it, in her handwriting, in black and white and handed it to a trusted adult and everyone ignores it and thinks shes just some oversexed teen? That was the most blatant, direct, clear, in your face cry for help a person could issue. There was nothing coy, or passive, or hinting it was absolutely crystal clear in its message. I hurt for this child who maturely, directly and specifically asked for help and has been routinely ignored.
For Jim, help might be harder to find, but I would suggest he start with a suicide help line or a social worker. Maybe even a cop. I mean Lolita is Susan's charge and Susan is failing to properly supervise her and Jim [should feel] threatened. He might do well to speak with a counselor on his own as well to work through why this attention is so hard for him to part with and why he is so weakened around this child and to get some coping methods and appropriate dialog scripts.
And under no circumstances should you allow Jim and Lolita in your home (or car, etc) together at anytime, lest you become an accessory to the crime which is seemingly brewing.
