Ok, I'm back and I haven't really been responding lately because I've been busy with some stuff and also wanted to see how the situation would progress. The general concensus I got from this thread was to stay rather passive and express my feelings to both my mom and dad, which I had attempted. When I talked to my mom privately, she started to cry and ran to the bathroom to take a shower. I went to my dad, and he gave me his BS answer, which was just so vague--his response was more or less, "it's typical for Mom to get angry at me for a few days, but just give it a few days and she will be OK." So, all in all, he was not going to actually try and solve the problem, rather let the feelings pass by.
I come back tonight in particular, because I have found out two devastating pieces of information. First, he is continuing his "affair" with not one Russian (or somewhere in the Slavic region) woman but various women. In my honest opinion, he is not mature enough to be seeking something emotional--and what he is basically doing is out of LUST NOT love. Again, that's my own personal opinion (after knowing him all my life). Secondly, he is getting money involved in the scene. He has contacted someone from the UK about "investing" in a business, but from the looks of it, the e-mail and operations seem extremely shady, and the man is asking for money, personal information, etc. My dad is not the sharpest tool in the shed, so he replied back to this man about the investment. On top of that, he has started a bank account (behind my mother's back). I'm under the impression that he started the bank account to share or give money to one of his Russian "friends", because she is the one who suggested it.
I can't just sit here and try to "express my feelings" when no one is willing to listen, and I'm tired of getting advice that does not work for me. This is tough stuff, and I'm not only afraid that my parents' relationship will suffer, but I'm also afraid that he is getting scammed to one degree or another. HE HAS SENT OUT PERSONAL INFORMATION (BILLING INFORMATION, ETC.) to strangers. What am I supposed to do? I'm sorry for seeming very angry and annoyed (I know you're all just trying to help), but I don't want something horrible to happen and have my parents lose our house, life savings, etc. because I took the advice of a bunch of strangers from a forum. I'm sorry.