I mean there’s plenty of reasons to be single at 35 that aren’t necessarily a knock against you as a potential partner. Long term partner cheated on you, long term partner died, long term partner grew apart, active duty in the military for 18 years, maybe the person threw themselves into work and was too focused on work to date or maybe they were caring for a declining family member and too busy to date, or maybe they were going through shit and they’re finally ready to date again after a lot of time healing and climbing out. You get the picture