I agree 100% with hvert, and who ever said relationships aren't work? You clearly need to know if both of you are willing to put in the work.

All the sunshine & rainbows, the lust, the companionship....it takes work to keep that going. Infatuation with love, with each other, with being a couple, it wears off in time. That is normal. People who think the rules don't apply to them in this are kidding themselves.
Being in a relationship is not for sissies. It is when the stresses of real life test you as individuals and as a couple, that you see how strong the love really is.

Relationships don't solve problems, not usually. They create more, so yes please, talk to yourself, and then talk to him about what your real expectations are.
Were you thinking he would be the last relationship you would ever be in, are you hoping for marriage or future children or what exactly? If you both want the same things, perhaps you have a chance, but it is critical that you can each communicate this to the other. Talk talk talk to each other. IMHO Most guys need (can tolerate) about 1/10th the talk time women do, so keep that in mind. Be super clear in your own thoughts & feelings before you attempt this conversation. Then listen very hard to what he says.
I wish you the very best of luck as you work through this....