Does my boss have a crush on me?

Or am I being silly? 

I wasn't sure if this was the right place to post this so I hope it's ok. Lately my male boss (he's like the asst manager, so not ultimate boss, but I am under him) has been acting different towards me and my instincts are telling me he's interested. Trying to be rational, I realize that I could be imagining things to make myself feel better perhaps, like a little self esteem boost? Or maybe he's just been looking for someone to be friendly with around the office instead of just business all the time and we are close in age and closer in personality to each other than most other people here. 

He IS married. I DO have a serious boyfriend. I'm not looking to get freaky or anything, but just figure out what is going on and how I should feel about it. It used to be a just business, average coworker to coworker relationship and interaction between us, but in the past 6 months we've had to spend more time together and have gotten to know each other a little bit here and there. I'm not a big chit chatter or small talker so we definitely haven't too many lengthy conversations though. But recently, especially in the past month, I keep noticing that he seeks me out to either work with me and help me with something I'd be fine not having help with (menial tasks, nothing he'd be worried I might screw up). That's when I really started to wonder what was up.  It could be my imagination but it seems like he looks for excuses to keep talking to me. Like we'll have actual legitimate work to discuss but then it really, really seems like he's looking for extra things to bring up to prolong the conversation. In general, the last couple months he's just been extra nice to me too. 

He also told me I looked nice the other day and the last two times I've gotten my hair cut, he's complimented that too. And also one of my shirts. Now that all sounds totally innocent, but that along with the other things I mentioned - it just has me wondering about all this. 

Opinions??