am i better off without him?

[scaredsilly]

need advice, please!
received this email from my husband today:
"Hi W, I just wanted to send you this ( click on link below) because SS22 came by the office yesterday for me to help try and fix a little something on her car ( hence I got a call from her and had a min to ask her questions about school) . She is now in summer school and is taking 3 classes to finish ( she also is working on getting a internship ASAP) BUT I wanted to let you know that she said she will walk in December. No matter what happens I wanted you to know that I would like you to be there if possible ( of course only if you do) More on that to come ( just wanted to remove any doubt)

Check out the link below on her class and how hard it looks to me, I am so PROUD of my baby.

She has asked me to help her check out 2 other schools after this for her Masters. The 2 places will be
(goes on to name two colleges not far away)

She has been saving for these and has found some other grant money< I think she has it figured out..

This is just a foot note on the above for FYI, I IN NO WAY WILL HELP HER WITH ANY MONEY just advice, ( just telling you what I know today)
H"

do i respond and if so, how?
things to keep in mind:
1. SS22 is the crux of our resent troubles. she's not the cause but living with her for the past 2 years, during my retirement (while H was out of town for six months a year) brought it all to a head.
2. i've sent her a text and email to try to reconcile our differences (see post of 4/20/12) and have received no response.
3. i've had no communication from his family members since the bomb back in december. they've cut me off and cut off my son's wife, too. she's tried to communicate with them and they ignore her.
4. "whatever happens" rubs me the wrong way. i know what's hanging over my head: divorce or reconcilation. i don't need reminders.
5. the reference to not giving her money is another thing i don't want mentioned anymore. we had both agreed that keeping track of what the other spent on their respective kids was score keeping and i just want him to stop reminding me of this.

do i respond? i was thinking of telling him that i'd be uncomfortable at the graduation, "no matter what happens" (unless he tells his family we are back together and his relationship with me is the most important relationship in his life!). it would be like going into an enemy camp. i don't know what he's told them but it's wiped out 15 years of goodwill, physical labor for them, emotional support towards all of them (his mother, 3 sisters, neices, nephews, aunts, uncles, cousins, etc.), and financial gifts.
i don't know. i'm not the type to blame anymore. i think maybe i should just reply:
"it's nice of you to send me this. i'm very happy for you and the joy you're feeling."
any thoughts??

p.s. him calling her "my baby" just makes me so ill! it's one of the reasons we had problems when she lived with us (me). he would not let her grow up!