The fact the ankle has reacted violently to playing rugby is significant. Something is obviously wrong - that may be inadequate rehab or you may have coincidentally suffered another injury to the ankle during the match.

If you have ruptured a ligament then conservative rehab has to be pretty intensive - and ongoing. It doesn't sound like this has been the case.

Your risk of re-injury is higher and the risk of secondary complications such as chronic ankle instability and osteochondral damage also increases.

I'd suggest an orthopaedic review as surgery may be your best option (depending on other factors such as your own personal circumstances)

From your story it sounds like your injury risk is unacceptably high and requires urgent reassessment