I need help! STBX just called this morning from his work and said he wants to give us another try. But he ASSUMES I am open to that idea. He did say "...if you are okay with that", but I know he knows that I will always consider this option.

He did say that it would take a lot of work and he said "and I know, most of that is me, Hoping, I know that", but he said he wants to give us another try "for the sake of S3...., and for you". ??? He did not say that he realized that he loved me or anything. Is it dangerous to get back together like this? Please advice!

A little background...
S3 and I came back from the ski trip yesterday. While we were up there at the ski resort, my cell phone did not work (no signals), but apparently STBX called three times during our trip. I think he wanted to be the one who takes S3 to his first ski trip, and must have missed him so much.

Anyway, soon as we entered the house, the house phone rang, and it was STBX. He said "I called you several times...", so I said "my cell phone did not work up there". He asked how the trip was, so I said it was fun. Then I asked him how his weekend was, and he just said "it was okay", in his depressing voice.

Then he was supposed to bring the dog back home (I asked him to take care of our dog while we were gone), and he said "Hoping...., I have a pasta sauce I made...., can I bring it over and have dinner there? Do you have pasta and parmesan cheese?" I was surprised by his request, but pretended I was affected by his statement, and simply said "sure, that's fine, I have pasta and cheese".

He came over, kissed S3 all over saying he missed him. Then he saw the roses I received from a guy for Valentines day (they are still beautiful and I had them on the table), and said "these are nice flowers, Hoping. Who gave you them?" So I said "my friend". He asked "your boyfriend?" I said "no".

Then he said "nice box", looking at a chocolate box and asked if I received it for valentine's day. It was actually from my girl friend for Christmas (I am not a big chocolate eater, so there are still some left in the box...), so I said "they are actually from Christmas".

Then he complimented some of the pictures I had on my console (I used to have a lot of our family pictures, but I took them all out and replaced with S3 and my pictures). "What a nice picture of S3 and Mama".

So the whole time I was wondering what he is up to. But I did not want to have any kind of expectations nor hope, so just kept unpacking.

When S3 asked STBX "Papa, are you going to stay now with us?", he got emotional and "oh wow....", then when S3 wanted to hold both STBX and me, to my surprise, he almost wanted to hold both of us.

S3 did not want STBX to leave, which made him feel uncomfortable, I could tell, but I told him to make the scene "light", so that S3 will not get too emotional, and STBX said okay, and left.

He called here at home (I took a day off today) in the morning but we were still in bed. Then he called me on my cell to tell me what he said.

How should I handle this? I do not want to repeat the same thing - that would hurt me and S3 so much and I never want to see S3 get hurt ever again.

STBX does not sound too convincing (he might be just getting emotional right now??), and I do not want to raise my hope too high either.