When someone is trapped in a cycle of addiction, half of their common sense is gone, especially when they are playing and that is the reason why they often do not hesitate at all to do unexpected things, borrowing money, cheating or committing crimes such as theft has become something that is quite common for them to do and the most common is usually selling various items that they have and all of that is done without them realizing it until in the end they usually only realize it when they are depressed and various financial problems befall them. In simple terms, yes, that can be used as a sign that the person has been trapped in an addiction, the point is that the inability to accept defeat and being obsessed with winning is the perfect form to be used as an excuse that they are addicted.
Actually when a gambler has gambled with what he did not allocate properly for gambling, then it is a sign of an addicted gambler.
Such as an allocation of $ 50 for each week, but when the gambler finally allocates all his salary to gambling, then we can judge that the gambler is addicted.
The actions of the gambler beyond the limits you mentioned have made the gambler seriously addicted. Because the efforts made have involved other people to feel the loss. The impact of gambling addiction is indeed quite large on a person's life, especially their financial and social.