Wife Says I'm not Aggressive Enough

My wife (38 y/o) and I (49 y/o) have been together for 5 years (married for 2 years). We love each other very much and I can honestly say that she's my best friend. I would say we have an average sex life (if there is such a thing.) Usually 2 - 3 times a week, although usually pretty vanilla. I'm up for anything, but she's not that adventurous. When I tell her things I'd like to do, she usually calls me a perv or a freak. She says it in a joking manner, but I know there is a small part of her that believes it. She doesn't masturbate, won't use toys, not into bondage, no anal (she has tried with others, but says I'm too big), etc. 99 percent of the time it's oral and missionary period. Because of this, I usually let her take the lead and she is the one that usually initiates. I'm a little gun shy to try anything new or out of the ordinary (for her) because I'm usually shot down and called one of the names above. This is messing with my confidence. When we go to bed, she immediately turns on the TV and is on her phone looking at Facebook, news, etc. To me this is an indication that she's not interesting in having sex, otherwise she would focus on me. The other night the TV is on and she's on her phone, so I settle in to go to sleep. The night before, we tried to have sex, but I was having technical difficulties. She rolls over a little angry and ask if I'm just going to lay there and says I need to be more aggressive. Which she has told me before. I told her that I'm not going to compete for her attention with the TV and Facebook, which turns into an argument. So, my question is should I stop being a pu$$y and try to initiate even if she's watching TV and playing on her phone, or do I have a valid point?

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