Hello Lomond - I really feel for you and just wanted to offer you my support, for what it's worth. I agree with Germanshephermum . That you feel angry, upset and trapped -as your son probably does on some level, - is completely understandable. Don't let anyone make you think you vshould feel otherwise. It's hard to find housing these days, but if you and your husband can somehow support your son in trying to find somewhere to live,or if he goes to her mother,. then you can take it from there. and probably your relationship with him may be somewhat easier, and in the future you may feel more able to have a relationship with his child. You were a child when you had your son. He is not. He is now 20 - not that much older, or ready for this, and probably, like you,understandably in a panic,but at his age when he can, with support, take practical to find a better solution to this,
You have to think of your family, your young child , and you should not have this disruption forced upon you, you should not feel obliged to have a young woman, who is virtually a stranger to you, suddenly change the whole family dynamic and your life for the foreseeable future. As you say, you love your son, and you do support him, but that does not mean you have to sacrifice your sanity by accepting the situation he and his girlfriend propose. You are young - same age as my son and daughter-in-law. You and your husband have busy responsable jobs You should not have this foist upon you. I do hope you can help your son find a better housing solution. But don't feel your feelings are unjustified - they are not. Good luck!