1. A 2017 survey of 1000 internet users over 18 reported that 19% are using online dating. Even that number seems to be high imo and might include those who are not using online dating at the moment [1]. I'm not sure how would this change your stated 50% of those who use online dating (after additional filters you have there).
2. There are fewer women than men on dating sites (e.g. 38/62 according to [2]). The total matches number for men will be smaller.
3. There are 8000 dating apps currently, and 1000 new ones are launched every year (!). Not saying you should be scared of that, but here marketing is a much bigger challenge than everything else. Are you a good marketer?
4. It's not even clear to me what is "dating outside your city". Seems like a significant obstacle to dating.
[1] https://www.statista.com/topics/2158/online-dating/ [2] https://www.datingnews.com/industry-trends/online-dating-sta...