I'm (32F) getting mixed signals from (40M).

I work for a corporate company that shares a campus with other businesses. For the last 2 years I've had lunch in a court yard where a mix of coworkers and other company employees attend.

There is a man I've always noticed and have had brief interactions with. I've been drawn to him because he is reserved, has a gentle smile and always seems to have an eye on me when we are around each other. At the time I was in a tumultuous relationship so while I noticed these details, I didn't really look further as I was in a relationship. A few months ago I finally ended that relationship and started paying attention to this man more. I observed him and how I felt about the situation and if I should pursue. I also noticed he has never worn a wedding ring so I figured there's at least a chance he's not married.

A few weeks ago I decided to sit down next to him and introduce myself. He seemed a bit shaken at first, probably in shock, and nervous. We chatted for a bit to which he shared he has a wife and 2 kids. He also mentioned he's religious and attends church often. I was a bit surprised to say the least. He also mentioned him and his wife have their "ups and downs" but didn't elaborate further.

The next few interactions I had with him he seemed very pleasant and chatty. He asked more about myself. We discussed our work schedules and when our lunch times match up (we don't always see each other). By this point when we would see each other in passing, he would stare at me, and if our eyes met he would immediately smile at me.

At this point I'm smitten but totally confused. This man shared he's married with a family but seems to be interested in me. I am extremely interested in him. He hasn't mentioned anything flirty or inappropriate (which would usually be a sign that he's looking for a hook up and nothing else). In fact, he hasn't complimented or said anything at all about my physical appearance.

One interaction he gave me his business card and wrote his cell phone # on the back. I texted him my name, to which he responded back saying received, but that was it. I figured I wouldn't pursue since I'm confused of what his status is exactly and would rather him be the one to reach out to me.

The last interaction I had with him he seemed more subdued. He didn't immediately greet me and although I saw his eyes tracking me, the vibe seemed different. He seemed like he was struggling with his thoughts, conflicted almost. I will add that I have been dressing exceptionally well when I anticipate seeing him and this was on a day I got a ton of compliments from other people. Lol

I have a theories about what could be happening. 1) he has had thoughts or doubts about his current relationship but hasn't considered separation etc. until we interacted, and now he's dealing with mixed thoughts and emotions about the situation especially since he has kids, 2) he's in a committed relationship without issues and he's having thoughts of being unfaithful but since he's openly religious he's possibly feeling guilt, 3) #2 but has considered cheating and is unsure of how to approach me about the situation as he doesn't want his wife to find out.

Any thoughts?! I do plan on asking him what's going on soon enough.