Guys, Has he developed feelings for me?

My friend has been acting a bit strange with me lately, which is making me wonder if he is developing feelings for me. The first thing I noticed is that he started asking if I am hanging out with male friends or female friends when I go out. If I say, male he acts very disappointed and if I say female then he tells me to have a good time. Next, when I have asked him to do me a favor lately he started replying, “of course, I’ll do anything for you.” Finally, he started asking me questions to gauge my reaction like if he were to go on a date, how would I feel. These things may seem trivial, but if you knew him you would know that this is far from his usual behavior. I am just curious if he is developing feelings for me. I have not been in a relationship since my early twenties, so I am not well versed on this subject. Thanks in advance.

Guys, Has he developed feelings for me?
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