Am I too jealous???

So one time I texted my boyfriend from a fake number acting like it was a girl he used to be so in love with and in the past I told him to never text her back if she texted him and well I texted him acting like it was her and started asking questions like if your girl (me) would get mad if we were talking and he answered saying no and that it was just friendly talk then I decided to tell him if I could call him and he said yes and while I was texting him acting like the girl I was actually texting him and he was all normal and didn't even tell me, it was probably wrong to do it but I wanted to know and now I'm so jealous that when we go to the store he stares at girls like if he wants them I feel like I'm not enough for him and I always ask why he looks and he says cause he has eyes of course he's going to look then another time he told me this girl didn't have an ass and I got mad because I said he was basically telling me that he always looks at girls ass and he said i shouldn't even be mad because she didn't have a butt . Am I too jealous or no?