Soo I kinda had a similar experience but my husband directly said something similar to that (low maintenance). At first it threw me off but now looking back, I understand what he means by that. I'm a revert and he's Pakistani. So in his culture, the women can be a bit excessive with their demands. Not all obviously, and obviously I'm no expert on the culture, I'm only barely just beginning to understand it after four years alhamdulillah. But when we got married, I asked for nothing and being mostly estranged from my family they of course had no demands from him. There were no hoops, mind games, requests of gifts/provisions. It was just a mosque nikkah, a $1k mahr the imam forced me to take. When he said I was low maintenance and a relief compared to his culture I was like oh, is that why he wanted me? Cause I was a cheaper option with no drama? But obviously not, we are in love alhamdulillah and meant to be. But there is definitely an ease with being low maintenance that men appreciate. It doesn't mean women who ask for a lot or come with difficult families aren't worth it or worthy, of course they are, it's just stating the obvious that low maintenance is easier. I won't get into it but his brother just got married and I saw firsthand what super high maintenance looks like and let's just say :| ... I'm actually speechless and amazed in a bad way, but anyways may Allah swt bless their marriage, sincerely. Ameen.
As for your other issues you raised, my husband also never got me a gift lol. Not until maybe a year after marriage. No flowers, chocolate, nothing, it's just not his style. It doesn't make him any less romantic or in love. I genuinely believe I got one of the best marriages ever in the history of earth.
I would say to pursue as long as it feels right, and let him worry about things from his end. As in, your worries seem to stem from wondering if you're what he wants/valuable to him. Let him worry about that and as long as everything goes smooth and you're happy with him, that is such a blessing!!
Finally, regarding conception, that is the only thing on this list I would want for you to have a complete conversation about. It's really important that you're both at an understanding for all possibilities.