Am I reading too much into this?

My boyfriend recently asked if I would get a tattoo, then randomly he asked if I would get rune letters tattooed on me. I asked why he just said they were cool. Then I found out a friend of his had gotten a tattoo with rune symbols on it. My boyfriend and this girl had a lot in common, more than me and my boyfriend and I have in common. She’s married so Im not insinuating he will leave me for her but that he wishes I was more like her. I had these thoughts before seeing the tattoo but that added to my . . .paranoia I guess. Am I reading too much into this and if not should I be upset that he likes her personality and interests more than mine?