wife's girlfriend....

Jess
Okay so in June my wife told me she wanted a divorce, shortly after I left she ended up hooking up with our roommate. They have been living together ever since, so in the beginning of December my wife messaged me out of nowhere off of my OLD Facebook. Telling ,e that she's being controlled and throwing this pity story and how she misses me and our. Son, (I'm 7 months pregnant as well) so I told her she had to get herself out of this situation, well she continued to talk to me and apparently broke up with this girl. Whom I do not ever want to talk to,so we have a wedding to go to in July. In Louisiana,she wanted us to come to Texas so she could see us. Well I planned to but now the girl she was dating is back in the picture, and wants Meagan to get a hotel room while I'm there. Well she was face timing our son and wanted to have this talk,I told her it was an inappropriate conversation to have in front of Ryker. Well she said its out of respect in her relationship, I was like oh so now you have respect for Kendall??? Anyways, that led to the girl sending me a text asking what the big deal is, she wanted to know if Meagan had been talking to me. So I told her the honest truth, she wanted proof I gave her proof. And of course I'm the big bad wolf for letting that girl know what her life will. Be like. Because Meagan is a huge liar and needs help. Well it's been like12 hours, and I'm starting to feel bad. It isn't like I just came to her, she ASKED. So my question is, should I feel guilty for this???