I would like to know what I should do. My girlfriend has a lover on the side. She has sex with him 2 times per week and it is quite obvious she prefers to do it with him. We also still have sex but I am beginning to accept that perhaps I need to surrender a privilege. She has denied me a couple of times after she let him have her but I am not ready to be denied for a long time. What is the middle ground? The idea has come to mind that I should perhaps start wearing condoms. Should I and what is the reasoning behind this? She's taking the pill so technically there is no need. Would it lessen the feeling of sloppy seconds? Would it help me to last longer? I can't get myself to try it even a single time so I think I need to raise the subject with her. What do I tell her?