<human>: I am hoping people who can relate or have some good insight can respond. 

For some context, I was independent and single for the longest time (several years).  I haven't been in *that* many relationships, but I'm not completely inexperienced either.  I spent a lot of time overseas during my singledom, established solid social networks, made a lot of friends, met a lot of people  and had an active social life. Although I was definitely fine single and didn't feel lonely, there were times when I really craved a life partner and knew that when I was in a partnership, I would want to feel loved, appreciated, understood, desired and supported. 

Fast forward several years and I finally met someone who makes me feel loved, appreciated, understood, desired and supported. He is the best boyfriend, so loving, so caring, so supportive and so committed. He puts me before anything and I know that he loves me. I know that we could have a future together and that we could work together as a team through good and bad. I feel myself and at home with him. The relationship is very easy. 

So where I feel like an asshole, is the fact that there is something in me which feels like this just isn't "it" despite the fact that all I described above is what I would want in a relationship: love, commitment, loyalty, trust, respect, etc. I want so much to feel like this is "it" because all the ingredients are there for the type of relationship I want. I don't know if this will come my way again in this lifetime. 

Can anyone relate to this at all?

Can you provide a brief overview of the text?
<bot>: In a lovely relationship with a wonderful person, but deep down inside my gut is telling me this isn't "it". What to do?