There's a long backstory but I'll try to keep it short.
Things haven't been great between myself and DH since the birth of our DD, one thing in particular DH struggles with is the fact I'm not ready to have sex again yet. It makes him angry and he will make comments about how it makes him hate me or will joke about how he understands why men cheat.
A few weeks ago I (accidentally) found out DH has taken an interest in one particular woman who he has met through his friend (his friends ex). They are not close, or even friends, and have no spoken for years, but he likes all of her pictures and pretty much everything she posts on social media. She is also the only woman he follows on Instagram (apart from myself). He doesn't even follow his friends or family on there.
I find him doing this weird as he has always made a big deal about how he finds it disrespectful to like pictures/posts from someone of the opposite gender whilst in a relationship and even goes as far to think it's disrespectful to be friends with/follow someone of the opposite sex on social media. I don't agree but as a result of his beliefs neither of us have ever done it, until this incident of course.
I asked him about it as I found it weird, especially after all his comments about cheating and hating me etc, and he said he could see why I would find it strange but it meant nothing.
Fast forward to today, I was out with DSis when she decides to tell me she found a text conversation on her phone from my DH to one of her friends, talking about how "he gets none" and because of this, he has "no self control".
She said she saw the conversation months ago (at the time it had happened, when DH handed her, her phone back) and didn't want to tell me but felt she should, she showed me the messages and I could see parts of the conversation had been deleted. I asked if she had deleted them and she said no and that the messages had been deleted by DH before he gave back the phone.
She asked her friend what DH was saying and her friend had said he was over sharing and being a bit disrespected towards me. DSis has asked me not to tell DH she's told me, and mentioned that he was drunk at the time (he was, I was there but wasn't sitting with them when he was using her phone).
AIBU to feel a bit uneasy about all of this? Am I overreacting? Putting 2 and 2 together makes me feel as though DH could potentially be, if he hasn't been already, unfaithful.
Wwyd in my situation if anything? Would you ignore DSis wishes and confront DH? Or would you watch quietly until you had something a bit more substantial to confront him?