Upside, Trusting again takes a lot of time because it's like learning to walk. If you do consider reconciling, your xh will need to prove to you that you can trust him again. He has to be the one to jump through hoops to win you back. I think that what is happening is that he's touching base w/you again and it's creating a bit of confusion in your head and most importantly your heart. If you aren't sure what you want to do, sit on it for a while, take your vacation and then see how you feel.
The first step is to become friends again and that would involve dating. I'm sure at some point, you'll go out to dinner w/him and then go from there. I would date him for a while and see what happens. However, I wouldn't allow him back into my life on a full time basis until you are absolutely sure that he is the man that you want to be. Trusting will come if he proves himself to you.
You do not need to make a decision today. As they say "all roads lead to Rome". Take this new revelation slowly, listen to what he says, but mostly importantly his actions should tell you what is truly on his mind. If the words and actions don't align, then he's not ready to return to you as a mature man.
Enjoy your vacation and take this time to truly relax and have some fun.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
