I don't remember if there was ever a definitive answer to who Jim's supposed husband was but this twitter clears that up, interesting to note that Jim is described as the 'wife' in the relationship despite them both being non-binary so whether thats to feed into the delusion that he's a woman or because he's the catcher in the relationship is up to you.
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Also some speculation, if Jim's 'husband' is with him while he's streaming I think its safe to guess they either live together or near each other and that is likely to be in Yorkshire based on Pheonix's Twitter bio