<human>: Can you give me a shortened version of the text?

We have been dating for close to 2 years now and I love her very much. She has always been "a bigger girl" I myself am pretty average but I fluctuate from good shape to kinda chubby. 

My SO has put on an additional 15 to 20 pounds the last two months or so where I have have taken to sticking to a diet and exercise regime. 

I was hoping it would maybe inspire her to do the same but it hasn't. 

She is sensitive about her weight and I want her to "get fit" with me but I'm afraid I will hurt her feelings to bring it up. How do I go about asking her?
<bot>: I am getting in shape and want my girlfriend to exercise with me but I don't want to hurt her feelings how should I go about this?