Had a discussion with the wife...
My opinion on the picture issue...Chapalito has a little growing up to do. But, guys can be very immature and possessive that way. Some don't like thinking about, let alone having full color hard copy images which infer that maybe, possibly, there may have been some chance, at some point, in a galaxy far far away, some other guy's ding dong may have even once been in close proximity to his woman’s love muffin.
My opinion on the sister...Sounds to me like the woman has possibly suffered some type of emotional trauma or has abandonment issues which have never been examined. Perhaps a bad relationship with dad, abusive boyfriend(s), adolescent on adolescent abuse, all of the above, who knows.
Its been my experience that women who engage in this type of behavior are trying to fill a void (no pun intended) or most common, a need. Because of the past abuse/trauma, some no longer feel "normal" without it and unconsciously seek it out by dating the "a**hole" guys, or manufacture drama by going outside their current relationship if they do happen to be connected with a "good" guy who doesn‘t provide the turmoil they subconsciously require. My guess is that deep down, she's probably not real happy with herself, probably for a myriad of reasons...self esteem, body image, lack of sustainable drama, etc. Drama and emotional upheaval could be all she knows and feels comfortable with.
My opinions come from reflecting back on my own courtship and marriage to a beautiful troubled woman who acted the exact same way. Both of my brothers, and a close friend, tried to warn me of their intuition about her (all were dead-on correct). I didn’t listen and married her anyway because I was sure she would change for me (ack! phfft!). That train wreck ran over me, backed up, and ran over me again for three long god-awful years before I finally filed the papers and was eventually able to delete that waste-of-space from my life because she didn’t change one stinkin’ bit. The marriage even hampered my health (near the end, I lost 36lbs in 6 weeks from worry and stress). I just thank sweet chocolate christ that I didn’t impregnate that ho. She’s now someone else’s throbbing headache.
The woman I started seeing after my divorce revealed some childhood sexual abuse incidents. She also exhibited anger issues, which I know (through hours of conversation) resulted from that trauma. She was a sweetheart of a woman, had a heart of gold, and possessed all the physical attributes prized by the superficial male. But, I had to bail because of the baggage. That one was a tough give-up.
My current wife is a jewel. She’s beautiful, loving, kind, generous, a great cook, treats my kids very well and has been able to put up with my crap for eight years now. I don’t know how she does it. I sure wouldn’t. I’m one lucky bastage.