True, gambling addiction does not only incur financial loss but also social losses. Friends and relatives will keep their distance from a person who is addicted to gambling. They will try to avoid these gambling addicts because they don't want to be pestered for borrowing money. Aside from that being a gambling addict may result in lost credibility and being irresponsible. So gambling addicts may also loss their family affection and eventually the partner may file a divorce or ask for separation if the partner wants to avoid the responsibility of taking care of the gambling addict.
These are the few possible losses a gambling addict may experience aside from money and losing jobs.
I think cases like this are not uncommon and it is true that this is one of the effects of gambling addiction in addition to financial losses, as you said that people around will choose to distance themselves from people who are addicted, none other than the reason because of the loan factor, It is certain that gambling addicts will contact the people closest to them when they run out of money to gamble and if the situation is already beyond help in the sense that they already feel they have lost the trust of those closest to them then it is possible for them to end up committing out-of-control actions such as stealing or other crimes that can generate money to fund their gambling activities.
Being irresponsible is a common thing for gamblers, and it is possible as you said that it can eventually destroy family relationships and end in divorce, on the other hand I have one friend who can already be said to be at the level of chronic addiction that he even dares to use the money of the shop where he works for gambling capital which in the end becomes a big problem that makes him almost kicked out of his house by his family, this is a worrying situation and I always try any way that can help him to slowly get out of the addiction zone because the addiction has consumed everything he has. This is why it's not uncommon for addicted people to end up crazy and even suicidal.