Question for Dyarstra.. Other opinions welcome too

I am still dating my Virgo. He is turning 30 and has expressed that he wants to get married and start a family very soon. All of his friends and siblings are already married with kids. Him and I have been doing well. In fact, we already were intimate. This took place the second time we saw each other (opps). The connection and chemistry was so strong, it was hard to resist. Well him and I were on the phone last night and we discussed a few interesting topics.

1. We talked about his past relationships. He mentioned that he is gaurded b/c he has been hurt in the past. His defense mechanism for this has been to build a wall. He implied that he "might need" someone to help him break through this wall. I am assuming that he was referring to me. Why else would have have said that. How can I go about breaking through this wall?

2. He also mentioned that he has no problem commiting yet he knows what he likes and if he sees that his g/f does not possess those qualities, he has no problem breaking it off. How do I keep his interest?

3. I have this urge to call him "sweetie and baby" but I am not sure if i should already be calling him "pet names". We are not in a commited relationship (gf/bf) but have decided to date exclusively. Would it be too soon to show affection and be lovey dovey? I do not want ot scare him off. You know us Scoprs can been very intense.

Thank you so much for all of your help! Your advice has already helped me tremendously.