One red flag depending on where he lives but in the US most people who live together as common law couples are considered legally married and need a divorce to dissolve the relationship.

As far age, I don't find that an issue. I dated a guy twenty years my junior for nearly two years and we got along great and the only reason it ended was I didn't want him to miss out on having children and I was unwilling to have another one. He said it didn't matter but I was afraid that would change and fear has always ruled my world.

Know that a person that you don't see can say or be anyone they choose to be. I'm not saying he is that way, but it happens. My current husband and I spent hours on the phone before we moved in together but that didn't tell me about his credit card debt and his unwillingness to compromise. We are still together though now because we financially have to.

Emotional affairs can seem very real but until you get to know someone in real life there are things you won't see.

I hope things turn out well for you. I hope I haven't sounded to negative. I really don't mean to but I am cautious.