Ex partner problems

Hi , just wanted some feedback on a argument I've just had with my long term girlfriend , we have been together 10yrs and have a son of 12 , he is not mine but have always seen him as my own & successfully went through adoption 4yrs ago. His biological dad has never had much contact because he has never wanted to . A problem has now arisen as my partner has now decided to contact him & send photos of our son to him without even mentioning it to me . This has deeply upset me and I have told her so , I only found this out because my partner had left her Facebook account open & I had a look through it - admittedly I shouldn't have done this but at the same time I'm glad I did . Just wanted some feedback on whether I was right or wrong , any response would be much appreciated . Thank you.

Yea I don't think it was right to go through her facebook but you already admitted that was wrong. I can understand you being upset because you have been there for your son and took him in as your own. That is very commendable. But even though you are his father in every way that is still his biological father and if the son wants to establish a relationship with him then it wouldn't be fair to stand in the way of that, then that makes you the bad guy. This is just my opinion but pictures aren't that big of a deal, it's just a picture. However if he wants to make contact or see his son that's when you and your partner need to discuss things. You will always be his father but if there is any chance that they want to get to know each other then you need to let that happen. Your son loves you that's not going to change because of this other guy because you're the one whose been there.

Thank you for the reply , I don't think I put my point across clear enough , what I mean was the pics have been sent purely out of the blue , there has been no request by my son nor from his biological dad , my partner has just taken this on herself to make contact. The contact is not a problem for me , if my son wanted to see his b/dad then I would gladly take him myself to see him , I have no issue with that at all , I just felt I should have been involved in te decision to send pics as I see it of my son . Thank you again for the reply its much appreciated.