Jealousy

I’m having trouble with one of my cousins girlfriend... ever since she started dating my cousin she seems like she wants to compete with my husband and I... (not just us but other couples in the family as well but I notice it more towards us because they hang out with us more) let me know if I’m wrong but this is the way I see it... so first off my husband and I eloped almost about a year ago and tell me why after we did she wanted to do the same thing.. (I know this because my cousin got really drunk one night and he told me “my girl really likes you! Every time you do something she tells me ‘we should do what they’re doing too!’ She really looks up to you and my cousin is kinda dumb he does anything she tells him to do... he literally left his whole family and stopped helping them out just because she told him too...) at this point they had only been together for 4 months... they ended up not doing it for some reason and moved on with that plan soon after my other cousin got married as well and after they had their big wedding (very beautiful) she wanted the same thing... she went crazy looking for a event center and once again... didn’t go through with it... short after my cousin and his wife are building a home and she now wants to do the same thing... 3 months later my cousins wife got pregnant... she kept saying how she wanted a baby also... sure enough a month later she was pregnant... now I’m not jealous of her I want a baby so so bad but I’m a believer of things happen when it’s the right time I don’t like rushing anything my husband and I have spoken of having a baby but we know that we’re not in the right moment to have a baby we want to be sure we have enough money and a place to put our baby... but she’s been rubbing in my face that she’s having a baby with my cousin in such a short time of them being together and my husband and I have been together for 4 years and nothing... we’ve tried..but it never worked out so we decided to let time do it’s thing.. don’t get me wrong I’m so happy for her but the fact that she knows we’ve tried having a baby and never worked out and now she’s rubbing in my face that she’s having one is what makes me so mad... and even though I know we’re holding off at the moment it breaks my heart at times to see that she got her baby without even having to try and I’m here struggling... what is y’all’s opinion on this... should I just ignore her... I’ve had it with her already honestly she’s so annoying and everything I do she tries to do it twice as better... or really anything ANYONE does... well at least that’s what it feels like...