You enjoy your new years Eve night with your daughter, I hate saying this but new year - fresh start. Look forward to the future you are giving to yourself and your daughter! You enjoy that drink and think about what you can achieve in the new year, give yourself something to focus on
I'd also bet my house and everything I have that he doesn't have cancer of some sort and through plenty of experiences I've had during/after break ups, the self harm/ suicidal messages may come through. It's another tactic for when they know they are losing you
Don't go to the GP with him, say worst case it is testicular cancer - IT'S NOT YOUR RESPONSIBILITY, believe me I can understand how you're feeling and all the emotions
But the fact you DID leave him, you are setting yourself up for protecting your daughter and giving the both of you the best start you'd deserve!
So have your drink, whack on some music or something nice,upbeat and funny to watch on the tv and toast yourself for doing and giving the best thing you could to you and most importantly, your daughter
You can get a good few apps I've used before which can block numbers and you can turn notifications off so you don't know they've text or even ( one I used) tick a box so if you do get tempted to reply, you can type and send your message, but he won't receive it
Don't give this man anymore of your thoughts or time tonight, new year is always a tough one filled with emotions but you owe it to yourself to see in the new year with your brand new start
Wish you and your daughter all the best sweet
Don't let him reel you in, he knows you will, he'll push as much as he can but stay strong,you've already left him, you CAN do this
I'm raiding my glass to toast you and your daughters freedom 