marriage bug

I'm married to Abigail, am in Year 3 Spring, just recently got the cellar upgrade to my house, and twice now I've noticed that first thing in the morning (ie. just about 6 am) Abigail decided that she does not like her normal pathing and instead wants to walk through walls and into the void...

I started dating Sam and he didn't say any relationship-related dialogue, despite being my boyfriend. Now we are married and he doesn't talk to me at all. Also, my wallpaper and flooring keep changing on their own, which started happening when we were engaged. I am playing on PC. Version 1.6...

So, I have a 10-heart relationship with two marriage candidates. I went to buy a mermaid's pendant and proposed to one of them (Haley). Then I purchased a new mermaid's pendant, and I went and proposed to Haley again, to which she said something like "didn't you just propose to someone else?"...