I don't even know what to say

So my family called me last night, just to check up and chat. I heard an interesting update about someone I grew up with. A guy my little brother's age, who I was pretty good friends with, just got married. That didn't surprise, since he was always a lady's man, I figured it would happen eventually, and kind of surprise it took so long. Well is still leaving me speechless is who he got married to. Now I don't know the person, so I can't make judgements about her. But this guy is 23 and he married a 52 year old woman! I found that crazy. This lady is older than his parents! She been married once before, so she could have children older than him. Their new step-daddy could be younger than them! I'm assuming they didn't get married because of a pregnancy, since she's mostly likely too old for that stuff anyway. How could you at such a young age decide you never want to be a father? To make things even more strange, weird, gross (I dont' know what word to use here) she was a teacher of an institute class (a religion class) he was taking! Talk about crossing the line a little bit. I'm a firm believer in not putting yourself in a situation that could turn out the way it shouldn't. Like spending time with a student after class, or a married lady without her husband (now I don't know if she was divorced or married when they first starting spending time together). This whole situation just boggles my mind. The parents were even invited to the wedding or have met the lady yet. I just don't know what to think. What do you think?