Myself and my partner got together a few years ago, we did split up for a year but then got back together.
During the time we split he had got a new job and was also working along side his new bosses daughter, I've always had him on social media and admittedly during the time we were split I would have a stalk and we also have a few mutual friends. I noticed he would heart most of her photos.
Anyway, now since we've been back together he still works for the same boss, but rarely works along side the girl these days. I've noticed recently he messages her, nothing dodgy from what I've seen. Just talking about work. But tonight I noticed he sent her a funny video of another guy they work with, she replied back that it was funny he responded back "I know", then half an hour later he re sends the same video to her again? He's not sus wjth his phone at all, but I've seen these messages on the laptop tonight where his fb is logged in, please don't judge 
Anyone else think he's just really trying to strike up a convo with her? She doesn't seem interested at all.