The 34-year-old star has been trying to get in touch with Evans to get over her split from Cipriani, who she dumped four months ago when she discovered he was cheating, reported Daily Mirror.
Evans has since reportedly fallen out with his own ex, '90210' actress Jessica Lowndes, when she discovered he was secretly messaging Brook.
"Thom and Kelly have been texting after Kelly admitted she still has feelings for him. Thom has been so confused since he split up with Jessica. He was really in love with her, but gets distracted so easily. He doesn't know what he wants and hasn't been himself for some time," a source said.