<human>: A little background; my boyfriend and I started dating last April and at first the relationship started out long distance. He was in Florida, and I was in Vermont. He moved to Fort Bragg with his brother and once a month we'd visit each other. In an attempt to promise a future together, my boyfriend decided to enlist in the military. We're madly in love, and luckily we had a great friendship before we started dating. Marriage has come up in conversation, and we plan on getting married very soon. 
The last time I saw my boyfriend was for the holidays, and while I was waiting for him to get off the plane, I over heard my dad and his girlfriend talking. I heard some one say "engagement" and "this trip" but I couldn't hear anything else. I don't know how they figured it out or if they know anything at all, but I still haven't brought it up to them and neither has my boyfriend. 
Previously my dad had told me that he will never marry again, and even in the beginning of the relationship with the woman he is with now he told her he wasn't interested in getting married again. But just yesterday I saw her posting a bunch of engagement ring pictures on Pinterest so I jokingly commented on it and she said "your dad wanted suggestions". 
Honestly, I am happy for them! If that's what they want and they feel that they're ready then they should be getting married. But I can't help but feel that it's such a coincidence that they kind of know I'm planning on getting married, and that suddenly my dad wants to get married too. Am I crazy?

Can you condense the text into a few key points?
<bot>: dad suddenly changes mind about wanting to get married once he has an idea that I'm getting married soon. Should I feel weird about it?