Cancer guy retreats into his shell, why?

I've been talking to this cancer male 7-7-1991 for a little past a month and we've hit off famously I'm a Pisces 3-11-1991. We agreed to be friends first and take it slow. We have slept together twice and are still on good terms. I'm very open about my feelings but he isn't. I had surgery this Wednesday and he dropped me off at the hospital and the plan was for him to pick me up. But my mom decided to drop by unexpected and when he came to got me she was still there.

Before my surgery he texted me "I like u and like u a lot and u make me smile with all u do... I care a lot but I told u I want to see where it goes I am in no rush"

He seemed very uncomfortable and later told me he didn't want to meet my mom like that plus everyone assumed we were together. It seems like he is being forced into a relationship and asked for 2 days of space.

This guy would write me poetry and see me whenever I requested. Very affectionate, a tad bit jealous and possessive if he doesn't get the attention he wants. But he can be a bit emotional.

I'm scared I ran him off because he is asking for space for a day or 2. I want to assume he is being overly emotional and can't process the emotions that he is feeling for me. Have I lost him?