So this morning I was on our public transportation system during rush hour. I got onto a train car and looked for a seat. There was one seat on 2 seater bench open and it was one of the "priority seats". (I'm currently 5 mos. pregnant, so I qualify for those seats.) I went to sit down and in the second seat on the 2 seater bench, was another woman. Her coat was on top of about half of my seat, but I figured she would move it when she sat down. She saw me eyeing the seat and scooched over. I didn't quite put two and two together, but she was a larger woman so there wasn't much scooching she could do. I sat down on less than half the surface area of my seat, with my shoulder digging into one of the other metal bench tops. I thought it would be rude to not sit after she had scooched over to "make room" for me, but I was horribly uncomfortable.
After a few stops another seat opened up, I went ahead and switched seats and wound up being more comfortable sitting next to another woman. I noticed that the woman I was seating with previously had been glaring at me for quite a while. I didn't think I had done anything wrong, but the way this woman was looking at me, I must have offended her. I feel really bad for hurting her feelings, was I rude for moving? I'm fairly petite but being pregnant and all, I need atleast 2/3rds of my seat. Should I just not have sat down in the first place, even though she had scooched over for me?