It's hard to admit, but I'm not healthy in that regard. I postpone the break-up so that time gives an opportunity to fix things, and when that fails I jump into another relationship right away, and not in a "using people to distract me from my pain" way but in a "falling in love with people who show me empathy and care, and who I imagine are a good fit without giving enough time to consider it thoroughly" way. Currently in the first step, waiting, wishing.
I have no advice. I can only say I am sorry you are grieving.
Edit: Grammar.
I mean, the people still exist and the need for honest opinions is still there. We just need to find a new place where money isn't such a big problem (although it will always be a problem to some degree). I really think a more stable and easy to use Lemmy could attract a large crowd.