I totally feel for you. Totally!
I have been with my husband for almost 11 years. Married for 9.
Before there was him, I had a few serious boyfriends(two of which I was engaged to be married to......like a month away from each wedding when I called them off). In the end of each, I had cheated and needed to come clean. My second call off, I had met my husband and was getting to know him..... Before I cut it off with my fiancee.
All this being said......I have constantly feared him cheating on me. He was and still is the only man I will NEVER cheat on. I have always feared as my punishment for what I did to the other two guys, I would eventually be met with the fate of a cheating husband.
In 2006, I was pregnant with our second child. He was working at Starbucks in Downtown Seattle. Which gave him the weekends off because his store was in the heart of the downtown corridor which never stayed open on the weekends.
To make some extra money, he started working the Husky Football (UW College Football team)home games. Which meant he was gone literally ALL day on Saturdays(only during Football season).
All this being said......There were some Saturdays I would drive him into Seattle and then there were some he took the bus in. All depending on weather and what else was going on that day.
There was one Saturday, I dropped him off...and things went very strangely for the rest of the day. When I would try and call he would forward my call to VM. He had me drop him somewhere totally away from where I normally left him off for work.
A couple weeks later, I was feeling overwhelmingly scared he was seeing someone else, I went through his phone. There were two saved texts messages from a co-worker named Becky(this is someone he had been trying to get me to want to hang out with for months...saying I would think she was awesome because we both had done ballet almost professionally and what not). The Text message went as followed....''Hey are we still meeting where we had discussed? I can not wait to get to hang out with you''.....The other message was her asking if he had told me he was working the husky cart on Saturday. Too see what their day was going to be able to in-tale together. There was not a saved response from my hubby back to her. I kept what I knew a secret for a very long time.
When he kept pushing me to try and be her friend, I let what I knew out of the bag. I could no longer handle the idea of him going with someone behind my back.
He of course denied any wrong doing. He said that they were meeting in Seattle to get up to Husky stadium. That all in all, I was seriously overreacting.
To this day I dont know the truth of this situation.
Did he have a relationship with this girl? I will never know. I eventually told myself I had to just move on from it. That without firm proof, I would be tearing up our relationship one accusation at a time. I did not/ could not live that way.
After a few months he had totally disconnected his ties with her and even the store they were working at together.
The moral of this story, you have to be very careful how you handle this situation. I totally understand and feel for where you are coming from. There is nothing worse then the idea of your spouse stepping out on you. There is no comfort anyone could give you to make this feeling go away.
I would put money of the fact your husband has no idea this is making you crazy. Being lieutenant, he is naturally the leader. Meaning he has to be close with his crew. They may just have to save each other's lives. so being close to each other is pretty understandable in their line of work.
Where you need to draw the line as his spouse is by pointing out that you feel insecure about how close he has become with his female coworker.
If you make your conversation based on ''I'' statements...HE can not get DEFENSIVE. Because they are feelings YOU are having and even though you know how much he loves you, they are feelings that are there all the same. Being married means for better or worse. Sometimes the worse can be insecurities about your relationship. All of which is acceptable and reasonable.
Chances are as soon as you bring this up to your husband, you will feel a sense of relief that is well deserved for you at this point.
My biggest fear as a wife and mother to my husbands children is him finding someone else he can love more.....and leaves me to fulfill that picture perfect life.
It sucks and will possibly be a bit embarrassing, you need to talk/ work this out with him. He would probably feel better knowing you have these insecurities and you can work on them together. Then to find out down the road you dont trust him and think he would go as far as cheating on you to satisfy his needs or desires. Right now your for better or worse is being tested. How you go forward will pave the way for you guys to become a stronger couple.
Good luck and remember not to overreact on things you may not have the bigger picture too yet.