Guy texted me this, ignored me the next days, and then showed excitement for another girl being added to our group chat. Is he not into me?

This is him 2 days after a party. He barely talked to me at the party. We play weekly sports with friends.

Him: Hows it going
Me: good just went for a walk. what you up to?
Him: Just playing a game with a buddy. You looked good in your costume the other day
Me: sounds fun. thank you, appreciate it
Him: No problem 🙂 you looked cute
Me: thanks 🙂
Him: No problem 🙂

He ignored me for 2 days after these texts and proceeded to show excitement for his coworker, another girl, being added to our sports group chat.
Friend: Adding Jessica from work
Him: Hell yeah. Are we playing this week?
*Friend adds Jessica to group chat*
Him: Welcome

He welcomed her to the group chat while ignoring me. He showed that he was active on our group chat and did not intitiate any texts to me.
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He usually texts me every other day, if not everyday. This week was a different week
Guy texted me this, ignored me the next days, and then showed excitement for another girl being added to our group chat. Is he not into me?
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