I am seeking non-judgemental advice please. I am a 35 year old female lecturer and in a relationship of 3 years with a man 10 years older than me. We don’t live together or want marriage and we have our own lives, but we get on well and he is a lovely, kind and loyal boyfriend who I love. I have experienced a few crushes during our relationship, which I have ignored and overcome and remained faithful. Recently a previous student of mine (who now works at the college) who is 10 years my junior and I have been flirting and really enjoying each other’s company. He fancies me and I know that sex could be on the cards. I am so incredibly attracted to him – I have thought of nothing else for the past few weeks and have stopped eating. The thought of not sleeping with him is killing me. I am not under any illusion about a potential relationship happening – although the younger man is lovely and decent (he doesn’t know about my boyfriend) we are not compatible long-term and it is only about the sex – for me and I think for him. Though I know that common advice would tell me to ignore my lustful feelings as they represent immaturity and a lack of responsibility, at the same time a big part of me is wondering why I couldn’t just have sex with this guy and fulfil that fantasy rather than obsessing about it all hours of every day. It feels like a sacrifice to leave things undone. My partner doesn’t want an open relationship and says the idea of me sleeping with someone else is horrendous for him. Should I break up in order to have sex with this man or do I stay and feel resentful and as if I’ve missed a thrilling opportunity? What is wrong with me? Again, please offer me non-judgemental advice - thank you.