He just asked me if what we have, do I do with someone else/other guys?

I've been seeing this guy since March/April, and things are going really good. We have had a brief dating scenario before where we would hang out a few times, and now is the first time I have just spent the night at his place and he asked me to meet him out. It is also the first time he has given me a direct compliment when I met him out (usually he would just compliment what I am wearing, but now he´s begun to tell me I look really good) and also he have started to give me direct signs and compliments that he wants me, and his friends saw me there and this is just the first time we have gotten to this level and he also asked me for my friends. However we have had many conversations about just status and things, he have expressed that he is going through mental things and things can feel very overwhelming for him which is why he needs space for decent period to express his feelings properly as well as commitment issues. He also recently told me while we have been dating the past month, he has been sleeping with other people and I told him we are very fresh, and at the moment I do not take it up close as it is very new. Now when I was with him now, he asked me a few questions that I have been thinking a lot about. Some of them were what we have and the way we are, am I doing it with someone else or other guys, and I said no, it´s only him. And I'm just wondering why? We have temporarily agreed that we have this semi-open relationship with each other, but the way we are growing as well as meeting friends and vice versa, it just seems like this is more and when I spoke with other people they said it sounds like he wants to be exclusive, but does not know how to say it and want that confirmation from you. Now I have not spoken with him for two days, and I am not too concern but it seems like he has a lot in his head that he is afraid to speak about and I am also wondering the same thing. He also indirect asked if I like him.

He just asked me if what we have, do I do with someone else/other guys?
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