Should I not get involved with a guy who has been in a 10 year relationship?

I don’t feel secure enough to talk to this guy I’ve known for years… I like him but I don't know if I like him enough or if I’m settling. He took me to the military prom. Almost 10 years ago and he was with his now gf… we always saw eachother as friends and he was nice. My mom and his aunt are coworkers.. and good friends..

He’s been with this girl for 10 years…he’s in the navy and lives in California… he wanted to move his girlfriend to California with him… we are close to 30 … I heard he wants a wife and family… she doesn’t want to move because I heard she has to stay with family ect… she’s in Michigan..

His aunt was telling him that maybe he should reconsider the relationship because maybe they want different things.. his aunt recommended me to date and he said “oh yeah..”

I reached out to him before to say hi and he said we should talk on the phone.. but we never did …

I just feel like he doesn’t like me enough and I don’t feel confident in talking to a guy who has been in a relationship that long…idk

Is it worth it?
Should I not get involved with a guy who has been in a 10 year relationship?
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