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I am sorry to hear about this situation. You are correct - palimony does not exist in Pennsylvania. So someone in your situation cannot seek relief that way.
However, someone in your situation can claim a common law marriage, arguably. While common law marriage has been abolished since January 1, 2005 in PA, any common law marriage entered into prior to that date is still recognized. If you were together for 33 years, then arguably, there was a common law marriage. Someone in your situation would have to prove by clear and convincing evidence that the two of you lived together, acted like a couple, and held yourselves out like a marriage couple. In addition, there is the added nuance of whether or not a common law marriage entered into prior to 2005 that is same-sex would be recognized, since same-sex marriages are recognized now, but were not back then. And yes, the common law marriage can be held valid even if it was not valid before the US Supreme Court decision - the ruling was retroactive - see HERE.
The way one goes to seek relief here is by filing divorce, same as in a regular marriage. The other side may challenge the assertion that there was a common law marriage, but if the union was for 33 years, it should not be hard to prove.
AS PART OF THE DIVORCE, ONE CAN ASK FOR (1) DIVISION OF PROPERTY AND (2) ALIMONY. Let me know if you need more information on either of those, or how to initiate divorce, etc.
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