Two months ago, I broke up with my wife after 10 years, and have nearly had a breakdown I've been so upset. It was all her decision. It's all I can do to go into work. But a couple of weeks ago, I met an amazing woman. I've told her I'm not in a position to say whether this relationship will go anywhere because I'm in turmoil, but she says she understands and just wants to help me. My friends say I'm mad, and should wait at least a year before getting into anything new, but this woman is making me feel happy again. I'm not being stupid, am I? Yours sincerely, Christopher

I have a friend I get on well with, but she never seems to appreciate what I do for her. I visited her in hospital every day and even took her nightdresses home to launder, I had her to stay – and I get no response at all except occasionally a grudging "thank you". I've tried to show her what manners are, so whenever I go to her flat or she does something for me, I email or ring to say how kind she is, and the other day I said I'd like a sign of appreciation occasionally, but she didn't seem to take it in. I feel so resentful all the time. I feel I'm just taken for granted. Yours sincerely, Lisa

My 15-year-old son watches porn on the internet all the time (I know because I've looked at the browsing history on his computer).

I'm getting married this summer, but I'm starting to have second thoughts. It turns out that my fiancé can't swim, or even ride a bike. He doesn't know how to change a plug, and when I asked him to bleed the radiators he didn't know what I was talking about. True, he can always fix my computer, but I'm starting to get irritated by his inability to do anything practical. My father was always fixing gates, repairing machines etc. It's preying on my mind and I'm starting to feel he's not a man. Do you think it's just pre-wedding nerves, as my mother says?

Yours sincerely, Carla

Q. I'm fairly well-off and people tell me I look good for my age – I'm 50. I'm divorced with a wonderful daughter, but though I do a lot for other people, no one seems to want to know me. I just can't get a girlfriend. I'm fine with short-term friends, but it's difficult to meet people when everyone I know seems to be married. I just seem to have dropped off the social rounds – it's as if I don't exist. I don't want to go online because I know it's full of gold-diggers and I'm reasonably well-off. Is there any hope for me? Yours sincerely, Patrick

I am convinced that my 65-year-old husband has something wrong with him. He used to be so intelligent but now he's forgetful and muddled. He writes paranoid letters to neighbours, and is obsessed by one, who he's convinced is spying on him. He now also spends hours on the computer on the David Icke website. He agrees he's got more peculiar but blames it on our neighbours' pesticides. He used to write and paint, but now just gardens all day. Our mutual friends say there's nothing wrong and it's me who's paranoid. What can I do?

Yours sincerely, Emma

I'm 18 and after a few drinks with my mates, I ended up in bed with a girl whose name I didn't know. We were both pretty drunk. We exchanged names and numbers in the morning, but never got in touch. Now she's rung to say she's pregnant. I don't remember much about the night, but do distinctly remember her saying she was on the Pill. I feel my life's ruined because of one night. I haven't told my parents, as I'm sure they'd be furious. I suggested I pay for an abortion – I'd find the money somehow – and she put the phone down on me. What can I do? Yours sincerely, Jack

Before she died I promised my mother I'd look after my younger sister. She is now 40 and I'm 45. The problem is that she rings me sometimes four times a day, always complaining about her life, her husband, what a neighbour said to her... I feel I'm being used as a kind of free therapist! Her husband has been diagnosed as a schizophrenic, so she does have problems, but he has a good job and is perfectly nice to meet. Is there a syndrome that my sister's suffering from – unhealthy wallowing in impossible situations? She just seems hard-wired to be anxious. Yours sincerely, Jemima

For the last three years, my husband has forgotten our wedding anniversary, though we've been married nine years. It is coming up again and I find I am already dreading the disappointment of him forgetting again. I know it's silly, and everyone says it's clear he loves me, but it means so much to me, and when he forgets we always have a terrible row. He says I should remind him, but if I remind him, then there's no point... he should remember of his own accord. I don't know how you can help me, but does anyone else feel like I do? Yours sincerely, Nollie

I've been married for five years and our sex life has never been very good but I love my wife very much. However, last week she suddenly dropped a bombshell. She told me there is a man she really fancies, someone she met at her yoga class, and that she wants to have an affair with him. She says why don't I find someone as well and then she won't feel guilty. I've told her OK, because otherwise it's over, but what can I do? I don't want to lose her. But I don't like the idea of an open marriage. Yours sincerely, Brendan