I would like to know what the seating arrangements are on the trains. I purchased 2 tickets and would like to sit together but the numbers are not in sequence. One is 43 and the other 45. Are this across from each other? Please help.
I've done this so many times, I don't pay much attention to it anymore, but I think I recall that they are next to each other. Either that or (as you suggest) across from each other. Anyway you look at it, you're close to each other.
That's a seat across from the other person. You'll be separated by a gap of about 3 feet, it's really more convenient to talking anyway. Sounds like two aisle seats (assuming it's not a compartment car). You can likely switch seats, I wouldn't be concerned.
Every train system is different, but we have had tickets where the odd-number seats are on one side and the even-number seats are on the other side.