Search Results: just joking husband

My husband's friend, let's call him W, is one odd duck but he's been my husband's friend since they were teenagers and mine for the last ten years. My husband says that W likes me better than him and wants me for himself. These are his reasons; when we're all together W talks to me more, he always smiles at me, he laughs at all of my jokes whether or not they're actually funny, he agrees with everything I say, he remembers every detail about me that I or my husband have ever told him, he goes out of his way to help us out in any way (something my husband says he NEVER did for him before I was around), he's always sending gifts home with my husband for me, he always asks about me when I'm not around.
Okay now here are the reasons I have for thinking my husband might be right; I recently became friends with W on a social media site and I'm pretty sure he's been stalking me (he mimics my posts and won't post at all if I don't) also, he 'likes' everything I say (but he ignores my husband completely) and he always waits exactly one hour before doing so, I've noticed that he gets extremely uncomfortable if I and my husband attempt any form of PDA even if it's just hand-holding, other male friends of ours joke around and tease him really bad when we're all together and he blushes and gets very angry until he sees how hard I'm trying not to laugh and most of all I just get this weird funny feeling in my gut when I'm around him. But I also have reasons to believe my husband might be worrying needlessly; W saw my cleavage once, just ONCE, and when he did I could tell right off that it made him uncomfortable - he left after about 2 minutes and then never came out of his room, and he acts like he's scared of ever being alone with me - he gets nervous and leaves.
So... Iis my husband just jealous or is W really trying to do what my husband thinks (I still think he could just really like me as a friend) he's trying to do? And, if so, what the heck am I supposed to do about it?