Sorry for typing in English, but this is the only way I can do in my office. I also had the experience of doing a PhD two years ago. I was 25 then and did not continue for various reasons. I understand that doing a PhD with so much pressure from both study AND the social circle must be very challenging and stressful for you. It is not your fault of having a higher academic degree while being single – trust me – you just have not met your Mr. Right. So, cheer up – do not let anyone talk you into any stereotyped scenario and make your own decision whether you would like to go for the match-making parties. It is your life after all. Enjoy being single when you can, and then cherish the time when the right person shows up around the corner. Good luck!