<human>: Provide a brief overview of the text.

I have been with my partner for over 7 years, and it's fair to say you couldn't ever describe him as skinny. In the past couple of years though his weight has massively increased, and I'm starting to worry about this.

I feel I should point out that I love my boyfriend very much and my concerns aren't out of vanity, I'm genuinely concerned about his health but don't know how to discuss this with him without offending him. I have tried to suggest we run together in the past but he see's any comment related to weight as an attack.

Any advice on how to bring this up with him and help him get in shape? I don't want to be spiteful and hurt him but know something needs to be said.
<bot>: Boyfriend of 8 years is gaining weight and I want to help him get in shape. Advice to create a dialogue with him needed.