kech...just step back a little and breathe. You don't have to answer him immediately. You're GAL. You're busy with baby and working on you. If he keeps pounding you while you are busy, you need to stand up to him and tell him to back off on the texts.
If you need to respond, tell him, "That's up to you. The house needed care, so I took care of it." That's it.
Taking a page out of Steve's book, look up the book "No More Mr. Nice Guy". There is a lot of useful information for you to use as well. About boundaries, the need to rescue, giving to get, etc. Also, if you haven't already, look for IC for you. I would say look for a good MC for yourself (I'm lucky in which my MC has been great so far). Seek places and support groups that will give you the needed strength and endurance for this journey.