<human>: My boyfriend's best friend recently got married, and my boyfriend was a groomsman in the wedding. After the ceremony at the reception, my former military, normally very stereotypically "manly" boyfriend, started sobbing out of nowhere. Crying for an several minutes, ugly-cry-face kind of crying. I was alarmed because 1) I think I had only seen him cry once prior to that and 2) he is not usually emotional in any way in public. I asked what was wrong and if he was alright and and he said "If anything happens to [best friend], I will have to take care of [best friend's new wife]." 

I found this answer very strange and asked what he meant and he said that I "didn't understand" and continued crying. His best friend is also former military and I totally get that the fear that something could happen to him, leaving his new wife without a husband, would be concerning...but he's not in the military anymore. He works a normal job that isn't dangerous. Boyfriend seemed to be in despair rather than coming from a place of fear.

Something seemed off about the reaction and I have become concerned that he has feelings for his best friend's wife. He has always been close to her and is very complementary of her all the time, almost as though she can do no wrong in his eyes. Am I making too much of this? I feel a little silly and am not sure if it's worth bringing up, but it's been nagging at me a little.

Can you condense the text into a few key points?
<bot>: Boyfriend cried at best friend's wedding so much that I am beginning to wonder if he has feelings for his best friend's wife.