<human>: Give me a shortened version of the text

First of all, I have a great relationship with my SO. We've been friends for a couple of years, we have been sharing the most amazing relationship ever for 6 months now. 

I'm not the nosy type to obsessively go through his emails, texts, or calls, but I caught myself 2 weeks ago looking through his texts after his LTR (6? 7 years?) ex girlfriend called. He said she does that frequently and was abusive, obsessive, and crazy.I couldn't sleep that night and went through his phone for the first time. This crazy ex wasn't the one I worried, her texts sound very mental and he never replied to any of them while we are together. 

But I found one of his female friends' texts, not only has she called him babe once and continuously express how she "loves" him and is so glad that they met and spent time together (they are 1500 miles apart right now), but she also repeatedly invited him to be her +1 to an engagement party near where we live now. Nothing sexual was ever exchanged but she did say how they can stay the night together at her mom's place or whatever and it'd be "awesome". 

He has mention her to me before even about the invitation and said her boyfriend passed away a year ago in an accident and she is having trouble coping with getting close to new people, they are only friends, and he's probably not going. I asked him if he tells his past female friends that he has a wife now and he assured me he does. But I didn't see any mentioning of even a girlfriend in his responses. He just said he "loves" her back and can't make promises but do want to see her again. 

Should I worry about this? I feel like I'm not sympathizing with a girl who experienced a traumatic loss and is seeking comfort in friends, but at the same time I don't want to be stupid and oblivious if he is emotionally cheating on me at all.
<bot>: Found overly friendly text exchanges on SO's phone from a girl who's inviting him to be her +1 to engagement party, can't decide whether she's a thread or just seeking comfort after a traumatic loss.