I'm sad to hear that the Tinder traffic dried up for you.
Tinder bot traffic has been one of the most stable and lucrative sources of traffic for dating site marketers.
There are other sources of dating traffic. You can use Facebook accounts.
I know this personally because when one of my posts on Facebook went viral, I started getting all these friend requests and most of these are obvious fakes. When I look at their timeline, you can tell that they are trying to get people to send them a DM so they can sell them something related to dating.
Others are more subtle. These are bots that use prepared scripts to try to get you on email and from there, get you to click on a link and join a dating site.
Facebook takes a little bit more work than Tinder, but it can be done. You also probably would need scale and automation to pull it off.
Twitter is also good if you have a lot of bots running at the same time, but if you're just going to do this manually, it's probably not going to be worth it unless you live in a country where the dollar exchange rate is so high and your cost of living is low enough that you can get by on a few conversions every week.
But generally speaking, if you are based in the U.S. and you want a healthy conversion volume, you would have to build out a lot of bots and have a proxy network to support your bots and software-driven accounts.