Am I falling out of love?

So I been really stressed and depressed lately and idk if it’s that or, I’m falling out of love.... lately I been more snappy with my boyfriend, and just kinda not cared. Like my heart doesn’t jump a beat when he kisses me(never really have), I don’t get as happy when he hugs me anymore, and tonight I was feeling really depressed all night and when he said “I love u” I didn’t want to say it back.... plus when he talks to other girls, I used to get possessive and jealous but now I don’t..... idk I really care about him and honestly think I’m falling for him.... but idk.... am I falling out of love? Or is it the stress and depression?