You cannot respect your partner’s personal space
Every single individual requires personal space. Read that again. If your partner wishes to go somewhere without you, it doesn’t mean he/she is tired of you, it just means that he/she needs some time alone and that is totally okay. You both have a life of your own. The soon you realise this, the less you harm your relationship. Expecting your partner to keep talking with you throughout the day is plainly insane. In addition to this, if you keep checking his/her phone regularly, then you are 100% the toxic one. Stop it.