My boyfriend and I have been together around 18 months. He's going travelling for 5 weeks next month on his own for his 40th birthday. He likes to travel and visit different countries and has always done this. Im just finding it hard to accept this as I feel its wrong to do this when in a committed relationship and can't understand why he would want to leave me for this long if he loves me. Im not sure if I'm being unreasonable and would like other people's opinion please