Hello reddit I need some help on this one.

My bf of a year is an overall amazing person. We have great chemistry, can do anything together and are a great match.

In my past two relationships I've been burned bad. This causes me to have some trust issues, but also reminds me to look at any red flags that come up.

My bf and I have been together for a few months and things are great over all. There are just some things that have concerned me the past couple weeks.

His ex who he has been broken up with for about a year was hospitalized due to self harm and put him as her emergency contact. He answered the call and was very civil with no mention of her getting Her shit together and calling someone else for a ride or for the hospital to call. He told me that he made it clear he has a gf now and that she needs to leave him alone. Unfortunately he was not like that when he answered in front of me.

2. There is a female co worker he is very close to and talks to about personal things. He told me early on that he is close to her and that he opened up to her. He said she has a bf and that they would never and have never been more than friends. Early on in the relationship I came across messages and saw that he was talking to her exactly the way he is with me. Wishing her a good day, talking about random things, sharing new music.

A few days ago she text while we were laying together and I saw that he had bought her shoes that she wanted and he often makes it clear he wants to get lunch with her. He also told him not to "be weird" around her bf because he came for lunch one day. This is unusual because my bf is very social and friendly with people. He obviously goes out of his way to do nice things for her.

3. He didn't want to put on Facebook that we were in a relationship or post any pictures on Instagram because he "doesn't like anyone knowing his business"

The last one I noticed was last night. I sent him a picture of us while he was with me and his phone did not go off. Come to find out he has his phone on do not disturb at all times that he is with me. He claims it's because he doesn't want us to be disturbed??

I have never been angry at anyone contacting him and often ask why he doesn't talk to his friends more. He said no one contacts him but now I know it's because of the do not disturb.

He is with me almost every day. We do a lot of things together. He treats me well. I've met his friends, and his brother.

I have brought up each of these issues and he comes up with am excuse. Eventually he posted a picture of us. He makes it seem like I'm the one with a problem but I can't help but think these actions are strange? I've told him from the start that I am 100% open and honest and expect the same. I feel like he can't. I do not get angry and have never flipped out, I just want the truth.

Reddit, am I over reacting or are my concerns valid?

Tl;dr: bf is secretive about actions with co worker, puts his phone on do not disturb, doesn't like to show he's in a relationship on social media. Am I over reacting or is this shady?

He is cheating. Trust me. I'm sorry