Am I legally bound money back

[Daviebear]

My wife was given money from her aunt to buy a house out right at a time we had fallen out and she went to lawyer and he told her to say we had split up before she signed for the house so I wasn't entitled to anything.
We got back together a couple of months ago and I have put all my life savings into buying stuff for this new house as it needed decorated from top to bottom, this might be a coincidence or not but I have nothing left to spend on the house and at the weekend there I had a confrontation with her coke addict brother who seems to have more say on what's going on than I do, I've been told we are over as she's took his side and I'm back at parents staying, do I have a legal claim for half of the house if we divorce as it's in her name or just for the money I've put into the house? Or do I stand to get nothing?
No kids are involved

Unfortunately, the court won't be particularly sympathetic to you being a carer for your mother. Your ex is responsible for dependents, not antecedents. It would be considered fair that your mother supports you financially if she needs care from you rather than your ex.

I suspect given your ages and your wife's own low income, you will get much less than half. Probably just the money you put in or half of any gain in value whilst married, whichever is the larger.