Help - may contain TMI and a vulgar expression!

[mumky2013]

Im 7 months pregnant with DS2, its nearly Christmas. I've just had to buy my own Christmas present cos my partner of 7 years didn't know what to get me. And he seems to be putting a lot of effort into finding a secret Santa present for his 22 year old skinny blonde colleague that he has openly fantasized about sleeping with, during one of our sessions. His background on his phone is a famous person who is blonde and skinny, he fantasizes over other women. And now he has told me he doesn't want to raise another child with me because I am too emotional and messy (which i know). Do i just give up on us? or fight (again). I just feel so worthless.

OP - presumably all of his qualities were apparent 8 months ago when you decided to have another child with him.
But since you are where you are - you don’t have many choices.

If he is just looking and fantasising about skinny blond women - one can accept that and put a screensaver of some celebrity you find attractive....

Or you can move on to the next stage and be mom w/o him. As he seems to say it’s what he wants anyway.

Children rarely change relationships for better. But your baby is nearly here and your main focus should be on the kids.
Sadly, it seems your relationship has run its course.

There is nothing here that is worth fighting for. Why are you with this man at all given his behaviours?. I would make plans to leave this relationship asap. Consider also giving your as yet unborn child your surname rather than his.

Do not settle for this, raise your relationship bar a lot higher too going forward.